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ETHICAL PERSPECTIVES 19, no. 1(2012): 55-82.
© 2012 by Centre for Ethics, KULeuven. All rights reserved. doi: 10.2143/EP.19.1.2152679
Germ-line Enhancements and
Rough Equality
Michele Loi
Università Vita-Salute San Raffaele, Italy
ABSTRACT. Enhancements of the human germ-line introduce further inequalities
in the competition for scarce goods, such as income and desirable social posi-
tions. Social inequalities, in turn, amplify the range of genetic inequalities that
access to germ-line enhancements may produce. From an egalitarian point of
view, inequalities can be arranged to the benefit of the worst-off group (for
instance, through general taxation), but the possibility of an indefinite growth
of social and genetic inequality raises legitimate concerns. It is argued that
inequalities produced by markets of germ-line enhancements are just if it they
are embedded in a framework of social institutions that satisfies two conditions:
(i) Rawls’ Difference Principle, which states that inequalities of income and
wealth should benefit the worst-off group; (ii) the lexically prior “principle of
rough equality”, which states that citizens’ initial life-chances should be similar
enough, so that extreme inequalities in income, wealth and power are not pro-
duced or accumulated through institutions justified by the Difference Principle.
The principle of rough equality replaces the Rawlsian principles of the Fair
Value of the Political Liberties and Fair Equality of Opportunity in a post-
genomic society and expresses a concern with background political equality,
which is argued to be a condition of the freedom and equality of citizens that
should not be traded off with material benefits. Extreme inequalities are defined
in terms of political equality.
KEYWORDS. Germ-line, enhancement, justice, equality of opportunity, Rawls
I. INTRODUCTION
Some scientists think that we are on the verge of discovering techniques
that would allow us to modify the human genome in ways that would
be beneficial to human beings.1 While this research hypothesis currently
lacks any implementation in humans2, it has already had a tremendous
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impact on bioethics and political theory (Harris 1992; Fukuyama 2002;
Habermas 2003; Dworkin 2000, 446-451). In this essay, only one of many
ethical questions concerning this opportunity will be asked, one having to
do with social justice. Suppose that on a desert island with only one fam-
ily, there are no valid ethical objections against an unlimited freedom for
parents to enhance their children’s genome. Does it follow that every
couple, in a country, ought to be free to buy the same genetic manipula-
tions available in an unregulated market? This is a question for a theory of
social justice to address.
The aim of the present contribution is to argue that access to germ-
line enhancements should be regulated, even prohibited (in certain cases),
in order to preserve some rough condition of equality, both in citizens’
starting positions and in distributive outcomes. Rough equality is neces-
sary, it will be argued, for accomplishing justice within a society where
goods and political responsibilities are distributed, respectively, by mar-
kets and democratic institutions. Rough equality is of such great impor-
tance for the fairness of institutions, that it has to be achieved even at the
cost of reducing expectations of income and wealth for the worst-off
group. For the sake of rough equality, even the prohibition of certain
enhancements can be justified (when required by the circumstances), even
if nobody is made better-off thereby in terms of expected income and
wealth and expected realized abilities.
I will use a three-stage argument in support of this thesis. The first
stage (part II) is a speculative description of the pattern of inequality in
a ‘post-genomic society’, one in which parents can modify or select the
genomes of their children. It is argued that in a post-genomic society
where inequalities of income and wealth satisfy Rawls’ Difference Prin-
ciple, socio-economic inequalities can grow very large. The Difference
Principle, (henceforth, DP), states that:
[T]he higher expectations of those better situated are just if and only
if they work as part of a scheme which improves the expectations of
the least advantaged members of society (Rawls 1999, 65).
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The DP is meant to express an idea of reciprocity: the idea that nobody
should gain at the expense of someone else. It is satisfied when social and
economic inequalities created by social institutions are necessary to raise
the expectations of the worse-off. When inequalities cannot be reduced
without reducing the expectation of those who are worst-off, a society is
just (Rawls 1999, 68). In the second stage (part III), it is argued that
excessive inequalities lead to socio-economic inequalities that do not ben-
efit the worst-off group, even if the DP is satisfied. It is also to be argued
that in order to be fair inequalities must be produced by institutions that
satisfy the ‘principle of rough equality’ in addition to the DP, which states
that:
Citizens’ initial life-chances should be so similar, that extreme inequal-
ities in income, wealth and power are not produced or accumulated
through institutions justified by the DP.
The argument demonstrates that when background social inequalities are
too large democratic institutions and markets have a tendency to be
unfair, inefficient and unstable, even if expectations of income and wealth
are maximized. In the third stage of the argument (part IV), it is argued
that in order to guarantee rough equality in a post-genomic society, the
regulation of access to germ-line enhancements is sometimes required. In
part V some objections are considered and rejected.
My aim here is to bring issues of justice to the foreground, assuming
for the sake of the argument that the manipulation of human life is not
bad or evil as such. The present contribution is neither for nor against
germ-line enhancements. It is presumptively maintained that all moral
questions about enhancements (justice is but one of them) should be
decided after a careful weighing of benefits and costs, including long-
term, unintended consequences (Buchanan 2011). I deal here with one
possible cost, extreme social inequality, explaining why it counts as a
‘cost’ and discussing what carefully designed social institutions can do to
prevent it.
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I shall assume that the social and economic inequalities to which the
DP applies are defined by expectations of income and wealth.3 These are
(in Rawls’ terminology) primary goods: general purpose goods that every
person can be presumed to want whatever else he or she wants (Rawls
1999, 54-55). But they are not the only primary goods: self-respect (or
rather its institutional bases) is another. A good argument for the simpli-
fied index involving only wealth and income is based on the value of
publicity, the idea being that the measure of social advantage should be
widely shared and detectable. Wealth and income satisfy this condition,
while it is more difficult to reach public agreement on measures of well-
being, capabilities or human perfection, because questions concerning the
nature of well-being (as in welfarist approaches) or important human
functionings (as in the capability – and in the perfectionist – approach)
tend to be socially divisive. The application of the DP to primary goods
besides income and wealth, such as self-respect, is also problematic,
because we lack public standards to evaluate tradeoffs between such dif-
ferent primary goods. The rationale of the DP is intuitive enough: it is an
idea of reciprocity. Rawls writes:
[W]hat the difference principle requires, then, is that however great the
general level of wealth – whether high or low – the existing inequalities
are to fulfill the condition of benefiting others as well as ourselves.
This condition brings out that even if it uses the idea of maximizing
the expectations of the least advantaged, the difference principle is
essentially a principle of reciprocity (2001, 64).
What Rawls means here is that the DP is not a consequentialist principle
concerned with the maximization of the advantage of the least advantaged
group, but rather a principle that specifies how inequality is to be justified.
Improving the expectations of income and wealth of the worst-off group
can justify an inequality, but justice does not require improving these expec-
tations. Inequality can be justified when produced by economic incentives
that increase efficiency, from which the worst-off benefit the most through
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taxation and redistribution. My argument here is addressed to those who
share this idea of reciprocity.
Following this line of thought, some philosophers have claimed that
reciprocity in genetic justice obtains when genetic inequalities are neces-
sary to improve the expectations of natural primary goods – general-
purpose natural abilities – of the citizens otherwise born with the worst
expectations.4 But this position forgets that according to Rawls’ theory
several other conditions must be satisfied prior to the application of the DP.
These are expressed by the first principle of justice (Equal Liberty),
the Principle of the Fair Value of the Political Liberties (FVPL) (Rawls
1999, 197-199), which is a special clause of the Equal Liberty Principle,
and the Principle of Fair Equality of Opportunity (FEO; Rawls 1999,
77-78), which is the first part of the second principle of justice. I shall
not discuss the first, because I assume that inequalities produced by germ-
line enhancements cannot undermine the justification on which the Equal
Liberty Principle rests.5 Let us now consider the other two. They are very
problematic in the scenario of a post-genomic society, one in which a
child’s genetic endowments can be chosen or modified by his or her
parents. FEO states:
[A]ssuming that there is a distribution of natural assets, those who are
at the same level of talent and ability, and have the same willingness to
use them, should have the same prospects of success regardless of their
initial place in the social system (1999, 63).
The FVPL is defined in a similar way (1999, 197), but applies instead to
citizens’ chances of obtaining political roles. Neither principle implies that
all inequalities due to the distribution initial natural assets are unjust; both
imply, instead, that only those due to unequal initial social circumstances are
unjust. What counts as a social circumstance is, paradigmatically, such prop-
erty as being born in a wealthier sector of society, with parents able to afford
the best and most expensive private schools, etc. But the central distinction
on which both principles rely, the one between initial endowments and
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social circumstances, is difficult to draw if a child’s genetic endowments can
be chosen or modified by his or her parents. It is not clear whether artifi-
cially enhanced genomes should be regarded as social circumstances, unequal
natural assets, or both, because there are good reasons to place them in
either category, or in both. Each interpretation has a different implication
for how FVPL and FEO should be applied to institutions governing access
to germ-line enhancements. This is not, however, a point on which I wish
to insist further. Instead of engaging with the daunting hermeneutic task of
finding out which interpretation of the Rawlsian categories in question is
more appropriate, I will propose a strategy that bypasses such a problem.
My proposed strategy does not mention FVPL and FEO, thus avoid-
ing the question of interpretation in its entirety. I propose that we replace
FVPL and FEO with another principle, called the ‘principle of rough
equality’: citizens’ initial life-chances should be similar enough, so that
extreme inequalities in income, wealth and power are not produced or
accumulated through institutions justified by the DP.
The property that makes inequalities ‘extreme’ and the connection
between opportunity inequalities and outcome inequalities will be clarified
in part III, where its justification is offered. The scheme of the argument
of part III is the following:
(i) Institutions that satisfy the DP can produce extreme inequalities of
income, wealth, and initial opportunities.
(ii) Extreme background inequalities affect the procedures of demo-
cratic institutions, so collective decisions will be unfair, even if the DP
is satisfied.
(iii) They also affect the economy (via the political system), making it
less competitive and efficient.
(iv) Extreme inequalities undermine the socio-institutional basis of
social stability.
If so…
(v) A different set of principles is needed, one which avoids the result
described by (i).
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And…
(vi) One such set of principles described is the conjunction of the DP
and the principle of rough equality.
Hence…
(vii) Social institutions ought to satisfy the principle of rough equality
in addition to the DP.
Before examining the arguments step by step, some preliminary qualifica-
tions and specifications are needed. I only address questions of justice
between citizens of the same country or nation, that is to say only those
that have a local, as opposed to a global or international dimension.
I likewise do not consider the important question of justice between
generations. It is true that germ-line enhancements mainly affect future
generations, but not all the inequalities that they might create are inter-
generational ones. An example may help to clarify this distinction. Inher-
itance affects household savings, which in turn contribute to determining
the transmission of capital from one generation to the next: this is the
inter-generational dimension. At least in a moderately inegalitarian society,
inheritance is a further cause of inequality between those who inherit
different amounts of wealth from their parents: this is the intra-genera-
tional dimension of inequality. Here I only deal with the latter, except at
one point where I will briefly touch on the problem of inter-generational
justice, for the sake of illustrating how the two issues intersect.
Let me clarify some definitions before I proceed. I call ‘disease genes’,
individual genes, such that inheriting one (dominant) or both (recessive)
homologous genes is sufficient to cause a disease in the vast majority of
cases (high penetrance). By genetic disease, I mean one caused by ‘disease
genes’. By a ‘complex disease’ I mean one that is not caused by a single
gene or a very limited number of genes, but by several genes and/or by
a combination of genetic and environmental factors. Genes that are
statistically correlated with a disease when environmental factors play a
significant role in the etiology of a disease are not defined here as ‘disease
genes’.
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What do I mean by genetic enhancement? (i) As a first approxima-
tion, I shall use the label ‘genetic enhancement’ only for interventions that
are not meant to repair, de-activate, or compensate the disruption brought
about by disease genes. This comprises interventions that affect a per-
son’s susceptibility to complex or environmental diseases (such as select-
ing away genes correlated to multifactorial diseases or immunity enhance-
ments). It also comprises the possibility of boosting abilities within the
normal range.6 I shall only deal with genetic enhancements and assume,
for the sake of simplicity, that my analysis applies to a population in
which no genetic diseases exist (this possibility might become real, after
genetic diseases have been screened away).
(ii) The vocabulary of ‘enhancement’ is value laden, as the English
word ‘to enhance’ means to ‘increase’ or ‘improve’ (Savulescu, Sandberg
and Kahane 2011, 6), i.e. to make something ‘more’ or ‘better in some
respect. ‘Better’ can have as many different meanings as the word ‘good’.
For our present purposes, I shall assume that ‘better’, as applied to
enhancements, is equivalent to the phrase ‘affording a competitive advan-
tage in the competition for social positions higher in hierarchy of income
or responsibility’. In other words, I consider ‘enhancements’ to be only
those manipulations that are improvements relative to a person’s ability to
compete for a career. This operational definition is justified because the
allocation of the goods of wealth, income and responsibility is key to the
justice problem with which we are dealing here.
Conditions (i) and (ii) are necessary and jointly sufficient conditions
for something to be regarded a genetic enhancement in the present con-
text. Germ-line enhancements are a proper subset of genetic enhance-
ments. By definition, they are performed on the genome of the egg cell
or of the one-cell embryo before implantation in the mother’s uterus. For
that reason, these enhancements affect citizens’ capacities from a very
early stage of development. Our argument here applies to all germ-line
enhancements, but it applies equally to all enhancements that parents buy
for their children and for which children are not responsible. All the
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arguments concerning germ-line enhancements apply mutatis mutandis to
‘early’ enhancements.
II. GERM-LINE ENHANCEMENTS AND THE THREAT TO EQUALITY
In this section it will be argued that institutions that satisfy the DP can allow
very large inequalities of initial opportunities, income, wealth and responsi-
bilities. This section thus describes an instance in which the premise (i)
of
the argument above is true. It will also be argued that in a post-genomic
society extreme social inequalities go hand in hand with inequalities in
citizens’ genetic predispositions and realized abilities. The second claim is
important as a premise for the arguments elaborated in section IV.
Let us begin with an illustration of the social and economic inequal-
ities that an unregulated market of germ-line enhancements could cause.
Suppose that germ-line enhancements are so expensive that they are only
available to upper middle-class parents.7 Given this background, it is likely
that a market of genetic enhancements will amplify the existing inequality
of opportunity between the children of the rich and the poor. Inequality
of access to germ-line enhancements between wealthier and less wealthy
parents causes an inequality of opportunity between their children.8 The
children of the latter will turn out to be more resistant to disease and
enjoy superior physical and mental capacities. Moreover, they will also
have access to the best educational facilities and have plenty of opportu-
nities to cultivate their talents. In a private job market, firms compete to
recruit people whose high potential has been realized and cultivated
through education and training. Here even environmental and motivational
circumstances are systematically skewed in favour of those born in the
wealthiest sectors. Thanks to the germ-line enhancements their parents
purchase for them, genetically advantaged individuals tend to come pre-
dominantly from the ranks of those who also tend to obtain, on average,
a higher level of education and who develop greater ambitions. I shall
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label this phenomenon ‘coupling’, the fact that natural and social advan-
tages are likely to be combined. It is to be acknowledged that coupling
takes place already to some degree without genetic technology, because
genetically advantaged parents who have been socially successful have the
means to improve the abilities of their children through education and
other social opportunities. Notice, however, that the association between
genetic potential and social advantage is definitively looser in today’s soci-
ety, since many parents have great economic means in spite of average
genetic endowments, namely those who benefited from initial social
inequalities9, those who are very lucky, and those who despite their pre-
dispositions developed extraordinary motivations; moreover many chil-
dren of genetically advantaged parents may not inherit these genes
through natural reproduction. If wealth can buy much better genetic
endowments, the association of social and natural advantage tightens up
more considerably.
The second important post-genomic social phenomenon could be
labelled ‘accumulation’, referring to the fact that the combined advantages
of social circumstances and natural endowments can be reliably passed
on to the next generation, with an inter-generational accumulation effect.
Ceteris paribus, enhanced citizens are more likely to obtain positions at the
top of the hierarchy of income and prerogatives of responsibility and to
be able to buy germ-line enhancements for their children. In contrast to
somatic enhancements delivered at a later stage, germ-line enhancements
can also be inheritable.10 Gradually, the inheritance of enhancements by
the children who also receive the new ones may engender an accumula-
tion of advantageous endowments in line with most advantaged families.
In like fashion to large concentrations of wealth, large initial genetic
inequalities can be inherited and accumulated through generations in the
long term.11
It will now be argued that coupling and accumulation can take place
even under institutions that satisfy the DP, assuming that the principle
applies only to wealth and income. In this interpretation, the DP is used
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“for income and property taxation [and] for fiscal and economic policy”
(Rawls 1996, 283). The DP does not prescribe policies for correcting
inequalities of opportunity due to the initial advantages each generation
inherits from the former. As it has been pointed out:
Might it not be to the ‘greatest benefit of the least advantaged’ to focus
educational subsidies […] on those (often socially advantaged) students
for whom such investment would offer the highest rate of return and
then tax them for the benefit of the poor? Rather than fighting a costly
and possibly futile battle against family and class privilege, one might
instead put such privilege to work for the least advantaged among us
through redistributive taxation (Taylor 2004, 335).
Not only may resources be directly redistributed to lower income house-
holds, but having to buy private education for their children may give
parents an incentive to work more, adding to the efficiency of the econ-
omy. From the point of view of economics, it is not impossible for this
scenario to occur.
Let us now consider inequality of access to germ-line enhancements
from the point of view of the DP. In a society in which income and
wealth inequalities satisfy the DP, inequalities of access to germ-line
enhancements can be tolerated, if the resulting income and wealth inequal-
ity contributes through fiscal policy to improving the expectations of
income and wealth of the worst-off group. Higher income households
may still be able to buy germ-line enhancements that the least advantaged
parents cannot afford. Even if income and wealth inequalities are regu-
lated by the DP, coupling and accumulation can take place.
III. A DEFENCE OF ROUGH EQUALITY
The argument in this section involves two stages. It will be argued, first,
that in order to be just, a society ought to avoid excessive inequalities in
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citizens’ expectations of income and wealth, as well as excessive inequal-
ities in citizens’ ‘realized’ abilities (or skills). Second, it will be argued that
extreme inequalities should be tackled by equalizing initial opportunities. The
connection between initial opportunities and excessive inequalities obtains
in virtue of economic laws. If society provides ample opportunities for
all citizens to acquire sophisticated skills (by equalizing the initial social
circumstances in which they live), a larger supply of sophisticated skills is
produced. If access to social positions is open to all on the basis of the
relevant competences, a large supply of skilled labour drives down the
income of the social positions requiring more sophisticated skills. Thus
equality of opportunity drives down the inequalities that the DP can jus-
tify (Rawls 2001, 67; Freeman 2007, 130). This explains the connection
between outcomes and opportunities in the principle of rough equality,
which states that “citizens’ initial life-chances ought to be similar enough,
so that extreme inequalities in income, wealth and power are not pro-
duced or accumulated through institutions justified by the DP”.
In the first stage, I shall provide three arguments in defence of outcome
equality, each based on a different value: fairness, efficiency, and stability.
The fairness argument states that extreme inequalities are incompatible
with the proper functioning of democratic institutions, in the absence of
which collective choices will be unfair. The efficiency argument states that
extreme inequalities are associated with inefficient markets (in the tradi-
tional economic sense). The stability argument claims that envy caused
by very large and evident inequalities can undermine the (moral) motiva-
tion of citizens to abide by the rules of the (just) society in which they
live. The kind of stability that is in question is ‘stability for good reasons’,
not stability achieved by political violence, treachery or delusions. Stabil-
ity for the right reasons is morally desirable because it makes a just soci-
ety an enduring result and a goal worth striving for.
I assume that justice within a country is realized in practice through
democratic political institutions (involving universal suffrage elections
with a choice among different independent candidates) and competitive
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markets. Democracy and markets are not taken for granted merely
because they exist in most technologically advanced countries (where
germ-line enhancements are more likely to be developed), but because
they offer ‘procedural’ solutions for two difficult collective action prob-
lems: collective political decisions (required at least for public goods such
as defence and the protection of the environment) and allocating produc-
tive resources in the private economy.12 In ideal conditions, these proce-
dures can be ‘fair’, in the sense that they do not create further inequalities
that harm the interests of the worst-off citizens in society.
Let us begin with the fairness argument, which states that when large
inequalities of income, wealth and responsibilities exist, democratic polit-
ical procedures are unfair, even if income and wealth satisfy the DP. To
illustrate this, let us consider a society that has to make choices concern-
ing the environment, transportation, workers’ rights, bioethics and foreign
policy. Suppose that these choices have no influence on the distribution
of income and wealth but, at the same time, the most wealthy and pow-
erful citizens can set the political agenda and promote their corporate
interest (for instance by lobbying for favourable legislation; see Hacker
and Pierson 2010). The resulting choices can harm the worst-off even if
the DP for income and wealth is satisfied. For instance, a privileged elite
may lead a country to war. The policy could harm the interests of the
worst-off citizens, even if they are made richer by it: for instance, because
people in that sector have relatives who are citizens of the country against
which the war is waged. If a privileged elite controls a significant propor-
tion of a society’s resources and is able to influence elections, the war
may be approved in spite of the fact that a larger sector of society is
harmed by it than the sector benefiting from it. More generally, if wealth
is concentrated in few hands, a minority is able to set the political agenda
and pursue its narrow corporate goals (Rawls 1999, 197-199).
I define an ‘extreme inequality’ to be any amount of inequality suf-
ficient to engender a tendency among democratic institutions to disregard
the interests and moral outlook of the citizens in the worst-off group in
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the distribution of income and wealth. By definition, there is ‘rough
equality’ in a society, if and only if that society does not include extreme
inequalities.13 Rough equality in income, wealth and power is therefore
required in order to ensure fairness in the operations of the political sys-
tem. Rough equality is compatible with moderate inequality, because large
resources are needed to set the political agenda and lobby for favourable
legislation. When the DP for income and wealth justifies even extreme
inequalities, the preservation of rough equality has priority over the satis-
faction of the DP.14
Let us now turn our attention to markets. When extreme inequality
exists, the individuals and organizations that control a significant propor-
tion of a country’s wealth can protect themselves from competition by
lobbying for favourable legislation. This is morally relevant in so far as
monopolies, oligopolies and cartels produce economic inefficiency. Soci-
ety as a whole (including the worst-off) does not benefit from such poli-
cies. As the last and least important point, the stability-based argument
needs to be considered. Large inequalities of income, wealth, and pre-
rogatives of power and responsibility are important for the stability of a
just society, for reasons connected to self-respect, self-esteem and envy.
When inequalities are very large, the distance between the lifestyle and
the level of participation in culture and politics of the members of differ-
ent income groups is considerable. Thus, it is easier for some to feel
diminished and inferior and fall prey to envy, a socially divisive emotion
(Rawls 1999, 471-474). Envy undermines the ‘stability for good reasons’
of society, which is a stability achieved on the basis of the moral motiva-
tion by its citizens to abide by shared just laws. While stability for good
reasons is not a criterion of justice, in a Rawlsian perspective the fact that
a conception of justice can be realized by institutions that are stable (for
good reasons) is – other things being equal – a desirable feature thereof
(Rawls 1999, 398).
The conclusion of the first stage of the argument is that in order to
achieve fairness, efficiency and stability, society ought to avoid extreme
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inequalities. It will now be argued that in order to achieve rough equality,
the state should mitigate initial inequalities of opportunity. Society could
attempt to ‘insulate’ democratic deliberation from the influence of eco-
nomic power, for instance through laws that limit private contributions
to political campaigns. This approach may work in theory, but in prac-
tice it is very unlikely to be implemented by a society with a tendency
to growing inequality. Income and wealth inequality could be mitigated
by redistributing wealth in favour of the worst-off, but this leaves
already existing large inequalities of skills intact. These inequalities are
also problematic when they are very large, because highly skilled indi-
viduals can use their superior abilities and social responsibilities stra-
tegically for promoting their private or corporate interests through
political institutions. It seems that while differences in human ability
will always exist to some degree in a free society15, the degree of inequal-
ity is affected by social circumstances, especially at the beginning of
citizens’ lives. Citizens have ‘adaptive preferences’ (Elster 1983, 109-14),
that is to say, they tend to develop ambitions that suit the circumstances
in which they find themselves. When initial social circumstances are
very unequal, their ambitions tend to be more unequal and as a conse-
quence also their realized abilities. This inequality can hardly be cor-
rected by redistributing wealth to mature citizens, which is why rough
equality should be pursued by equalizing initial social circumstances,
which affect the development of ambitions and skills. This reasoning
leads to the principle of rough equality, which states: citizens’ initial
life-chances ought to be so similar, that extreme inequalities in income,
wealth and power are not produced or accumulated through institutions
justified by the DP.
Let us now consider the policies that can be justified by this principle.
Before genetic biotechnology, they were roughly equivalent to those pre-
scribed by Rawls’s principles of Fair Equality of Opportunity (1999,
73-78) and Fair Value of the Political Liberties (2001, 148-150). In addition
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to redistributive taxation justified by the DP, the state is required, for
instance, to fund access to ‘social’ enhancements such as education and
facilitate early career opportunities necessary to acquire marketable skills
for those who would otherwise be cut off from them. The principle of
rough equality probably does not prescribe compensation or correction
of initial natural inequalities. The amount of social and economic inequal-
ity due solely to initial genetic differences is probably not sufficient to
cause extreme equalities, once social opportunities are equalized.16 In the
next section, it will be argued that equal social opportunities in the tradi-
tional sense will not be sufficient if genetic assets are open to direct
control by parents via germ-line technology.
Of course this leaves open two problematic areas of inequality: (i) by
hypothesis, I am assuming that citizens have initial endowments in the
normal range. In theory, once all social causes of inequality are addressed,
citizens born with severe disabilities can still form a marginalized social
group. (ii) Global inequalities in access to genetic enhancements, as
opposed to inequalities within a single country, are also not considered
here. I am not claiming that these are not authentic problems of justice,
or less important ones, but I need to simplify the issue in order to derive
some concrete answers from a philosophical argument of manageable
simplicity and size.
IV. POST-GENOMIC INSTITUTIONS FOR ROUGH EQUALITY OF
OPPORTUNITY
What about a post-genomic society, in which parents can modify or
select the genome of their children? In section II, I argued that an
unregulated market of germ-line enhancements can contribute to the
build up of significant inequalities. The main difference between the
two scenarios is that, even if traditional equal opportunity policies are
perfectly implemented, they may fail to satisfy the principle of rough
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equality. Consider, for example, a state that delivers equality of oppor-
tunity by ensuring equal access to health care for mothers and children,
equally good and healthy nutrition, and access to equally good sport
facilities and education from kindergarten to university.17 These policies
do not produce rough equality in a post-genomic society: the children
whose genome has been improved may derive a larger benefit from
nutrition, sport and education. Traditional equal opportunity policy is
compatible with very different outcomes between the citizens who
have been and those who have not been enhanced since a very early
stage.
It should be evident that no regulation of germ-line enhancement is
required if after the redistribution of wealth from higher income to lower
income households no one has a sufficiently higher income to buy
enhancements for his or her children that are better than those of anyone
else. That is to say, if taxes are very progressive, parents with very differ-
ent pre-tax incomes end up being able to afford equally good germ-line
enhancements, or no enhancements at all for their children. Hence rough
equality could be achieved, even in a post-genomic setting, by traditional
economic policies such as steeply progressive income taxation. This is
true in theory, but in practice the required rate of taxation may too high,
to be achievable politically (or have huge opportunity costs in terms of
its impact on the economy). At least as a matter of non-ideal theory, it
might therefore be more viable to attempt to regulate access to germ-line
enhancements directly.18 I shall focus on a special type of germ-line
enhancements, namely “strong” enhancements:
a germ-line enhancement or combination of germ-line enhancements
E is (1) strong,
if and only if,
a free market distribution of E would determine such an unequal dis-
tribution of ambitions and skills in a society that implements ‘tradi-
tional’ measures of equality of opportunity, that extreme inequalities of
political power are produced in one generation.
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It might be objected that strong germ-line enhancements are impossible
as a matter of biological fact. Even if that is true, they might exist as an
artefact of social attitudes: if genetically enhanced persons are perceived to
be more talented than the ‘naturals’ by teachers and employers, germ-line
enhancements will indeed correlate with higher ambitions, skills and
access to more strategic goods, as in a self-fulfilling prophecy (Buchanan
1995, 133-134).19
How should access to strong enhancements be regulated? I shall con-
sider four possible policies: (i) subsidizing opportunities for compensation
through environmental means, (ii) subsidizing equal universal access to one
or a combination of effective germ-line enhancements, (iii) a lottery of
access to germ-line enhancements (Mehlman 2000, 573-574), and (iv) a
ban on a market of effective enhancements. When effective and imple-
mentable, all four are equally fair, yet, as it will turn out, other legitimate
political values and concerns can potentially be brought to bear on the
choice of a specific policy.
The first and the second are preferable, other things being equal, as
they involve no interference with parents’ procreative freedom (Robert-
son 1996) and may increase the ‘common asset’ of citizens’ abilities that
can be used to the advantage of all. Compensation may not work when
the competitive advantage produced by germ-line enhancement is an arte-
fact of social attitudes towards citizens perceived to be enhanced. Either
can be extremely costly to deliver. A lottery is less costly, with the only
advantage of avoiding the social segmentation of genetic inequality. This
reduces the ‘coupling’ of genetic and social inequalities, but appears to be
a very arbitrary way of disseminating initial advantage. What if each of
these options is too costly to pursue or objectionable on other grounds?
Should effective enhancements then be banned?
Of course the answer to this question depends on what one means
by ‘too costly’ in the given context. In other words, the answer depends
on the opportunity cost of a fair but moderately ‘liberal’ policy. The
opportunity cost represents the goods forsaken by a society that uses a
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significant proportion of its resources to fund access to germ-line
enhancements. Consider the following example. I define ‘basic education’
as the amount of learning (both practical and theoretical) most citizens
need to be capable of if one generation is to pass its ‘essential cultural
capital’ to the next. I define ‘essential cultural capital’ as the amount of
knowledge needed for reproducing the material and cultural conditions
of a decent democracy, a society in which all citizens can enjoy – to a
minimally morally significant degree – the liberties to which they are enti-
tled by the constitution.20 History shows that citizens do not need genetic
enhancements in order to pass essential cultural capital, but they need
some minimal amount of education: basic education. If implementing the
cheapest more liberal fair enhancement policy deprives society of resources
essential to deliver fair access to basic education, then I believe education
should receive higher priority than germ-line enhancements.
V. OBJECTIONS
I have conceded that significant genetic inequality produced by inequality
of access to germ-line enhancements needs to be prevented by a suitable
arrangement of social institutions. I have also admitted that this inequal-
ity is only one cause of socio-economic inequalities and that environmen-
tal factors, in particular the education one gets from one’s parents, are at
least as important. What if the lifestyle of the family has a much larger
influence on initial life-chances than any genetic difference produced by
germ-line enhancements? Should the state then abolish the family? Or
should it tolerate both inequalities due to the family and unequal access
to germ-line enhancement, because like cases ought to be treated alike?
In answering this question, it is important to distinguish between two
cases. In the first case, the lifestyle difference is explained solely by the
different socio-economic conditions of the parents and produces unequal
life-chances between their children. There is as good a reason to limit
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these inequalities as there is a reason to limit inequalities in access to
germ-line enhancements: hypothetically, they depend on socio-economic
conditions that depend on the choice of basic institutions. Consider now
life-style differences between families in the same socio-economic sector,
which are only due to individual variations or cultural differences, which
are not shaped by socio-economic circumstances. Suppose, for instance,
that some parents read bedtime stories to their children while others do
not, and that bedtime stories substantially improve a child’s life-chances.
Should the state equalize access to parents who read bedtime stories? The
practice of reading at the bedside seems constitutive of a special relation-
ship that some parents develop with their children, which is an important
prerogative of parents the state has reasons to respect. Thus some
inequalities of opportunity ought to be tolerated (Brighouse and Swift
2006). But clearly it does not follow that the state ought to tolerate any
inequality that is equal to or smaller than that produced by bedtime
stories. If the state can equalize access to genetic enhancements without
interfering with the internal life of the family, then it ought to do so,
whether the inequality is smaller or greater than one that is tolerated.
It might be argued that the justification of the principle of rough
equality contradicts the justification of the currency of the DP, invoked in
the introduction. If one assumes that there can be no public standard for
assessing tradeoffs between income (or wealth) and other goods, how can
one claim that the least advantaged citizens are worse-off in a society S1,
where extreme inequalities exist, than in S2, where they have a larger share
of political influence, despite the fact that their expectations of income and
wealth are higher in S1 than in S2? It seems that this claim presupposes a
comparison of heterogeneous goods (income and political influence) that
can only be made if the benefits of political influence, income and wealth
can all be stated in a common currency. But if a common currency exists,
why not apply the DP to inequalities stated in this currency?
In reply, the argument does not rest on the presumption that the least
advantaged citizens are worse-off in S1, which indeed would have to rely
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on a common currency. The claim is, rather, that a political process that
disregards the interests of the worst-off involves a particular type of loss
for its members that is not compensated by any ‘benefit’ deriving from
larger material resources. In section III, I imagined a possibility in which
the least advantaged citizens were harmed by the decision to wage a war
with another country despite earning a larger income, because they had
affective ties to the citizens of that country. There seems to be no ‘public’
standard for evaluating tradeoffs between the benefits of war and its cost
(in this specific situation) and the only reasonable way to reach a decision
is the democratic confrontation of different points of view. In this case,
however, it is also not clear why the ability to protect a private interest
affected by the collective decision to wage war should matter more than
the ability to promote other private interests through greater expectations
of income and wealth. To see why the power to influence public choices
should not be traded off with larger incomes, we need to focus on a dif-
ferent set of ideas. It is important to introduce the distinction between
two important moral powers: a “capacity for a sense of justice” and a
capacity “for a conception of the good” (Rawls 1996, 19). The capacity
for a sense of justice is exercised when reasonable and impartial citizens
seeking to build a just society reasonably disagree about policy, because
the evidence is complicated and the principles of justice are vague. They
participate in democratic procedures (including voting for democratic
representatives and their decisions by majority rule) to settle such question
(Rawls 1999, 318).
Being the most important means for realizing the capacity for a sense
of justice in a democracy, a person’s share of influence in the democratic
process should not be given up in exchange for a larger share of material
goods. This would express a significant devaluation of the first moral
power in relation to the second, an idea that does not fit well with the role
ascribed to the will of citizens within Rawls’ political liberalism. There is
something troubling in the idea of exchanging the possibility of exercising
the capacity for justice with a more fulfilling realization of a personal life-
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plan. The troubling idea is not that some specific citizen may value politi-
cal participation less than other goals in his or her life plan. The problem
is, rather, that the idea of sacrificing the first moral power for the sake of
the second does not fit well with the idealized notion of a citizen and his
or her moral powers, which forms the basis of Rawlsian political construc-
tivism. The idealized citizen views him/herself not only as having a fun-
damental interest in his or her self-interest (as he or she conceives it) but
also as a will whose moral reflection contributes to justifying social institu-
tions, on an equal footing with that of other citizens. This is why institu-
tions allowing a significant reduction of political influence are not justified.
It might be objected that even moderate income inequalities (justified
by the DP) would harm the worst-off citizens because of the social gradi-
ent in health: lower income is statistically correlated to worse health out-
comes and “worse health diminishes your opportunities and makes it
more difficult to take advantage of the opportunities that you do have.”21
But that is obviously true only if lower income is connected to worse
health outcomes in absolute terms. If your relative position in the distribu-
tion of health outcomes gets worse relative to that of other people, but
your health improves in absolute terms as a consequence of a larger income
(which may buy you better healthcare), it does not follow necessarily that
the growth of inequality will harm you by making it more difficult to take
advantage of the opportunities that you have. Income inequalities would
certainly harm the worst-off groups if they led to lower absolute levels of
health, as some epidemiologists have maintained (Wilkinson 1992, 1996,
2000). But the statistical evidence for this claim is not conclusive. For
instance, the positive correlation between mortality rates and income
inequality across the cities and states of the US may be confounded by
the effects of racial composition, because, as it turns out, white mortality
rates are higher in places where the black percentage of the population is
higher (Deaton and Lubotsky 2003). The mechanism that relates white
mortality to racial composition (lack of trust, perhaps) may entirely disap-
pear in a society where racial inequalities are not extreme.
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Finally, a word needs to be added about the inter-generational dimen-
sion of the inequalities caused by germ-line enhancements. As I pointed
out in the introduction, this is a distinct problem, outside the scope of the
present contribution.22 I only want to elucidate, with one simple example,
the way in which the two issues overlap in practice. Let us suppose for
the sake of argument that the present generation ought to pass on to the
next an amount of capital at least as large as the one inherited from the
previous generation. The principle of rough equality is satisfied by either
(i) a ban on very effective germ-line enhancements or (ii) distributing all
enhancements through a lottery scheme, with a given (high) cost. Suppose
that, according to the first scenario, one generation has exhausted natural
resources and risks passing fewer resources to the next generation than
it has received; in the second scenario, one generation has replaced the
productive capital it has consumed and is going to pass on more resources
to the next than it has received. In first scenario, parents have an obliga-
tion towards the future generation and should choose (ii). In the second,
they have no such obligation and can choose (i).
VI. CONCLUSIONS
I have tried to show that a certain normative framework (including the
DP and the principle of rough equality defended in part III) strikes a
reasonable compromise between different demands of justice: priority for
the needs of the worst-off, background fairness, stability, and publicity of
the moral standard used to evaluate social justice. I have applied this
framework to the question of regulating access to germ-line enhance-
ments (IV) and the result is a multifaceted regulatory regime, involving
different norms in different scenarios. The most significant normative
implication, also that which may strike some readers as counter-intuitive
given the Rawlsian liberal premises, is that there is a scenario in which a
ban on strong germ-line enhancements is justified.23
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NOTES
1. For instance, increasing resistance to HIV (Campbell and Stock 2000; Capecchi 2000).
In theory, it might be possible to boost physical and cognitive abilities, and alter social behaviour
in ways deemed advantageous for the individual or society. This has already been tried with some
remarkable success on some non-human mammals (Tang et al. 1999; Yang et al. 2001; Lim et al.
2004).
2. If anything, because research on the human germ-line (whether for therapeutic purposes
or not) is prohibited by influential international bioethics guidelines, such as Art. 13 of the Euro-
pean Convention on Human Rights and Biomedicine.
3. As Rawls writes, the goods that (ought to) vary in their distribution, to which the DP
applies, are “the rights and prerogatives of authority, and income and wealth” (1999, 80). Pre-
rogatives of authority are standardly assumed to covariate with income (1999, 80) and other
primary goods, such as liberties, opportunities and the social bases of self-respect, are allegedly
distributed by competing principles. As the reader will be shown, one will need to introduce an
evaluation of the distribution of these goods in order to limit and constrain the application of the
DP and its interpretation of reciprocity.
4. This is the gist of Farrelly’s ‘Genetic Difference Principle’ (Farrelly 2002).
5. The argument for equal liberties claims that they are needed to protect certain funda-
mental interests of beings who have the capacity for moral personality. This capacity has the same
moral value no matter how well developed, as long as it reaches a certain threshold (Rawls 1999,
443). If enhancements are improvement above the threshold of normality, they do not affect the
ground of citizens’ rights and liberties as understood by Rawls. For further discussion and defence
of a strictly related claim (see Buchanan 2010, 209-242).
6. The line between these two types of intervention is less clear than one might think, because
better normal abilities (e.g. higher IQ) can be significantly correlated to better health outcomes.
7. The past and current century has seen a rapid decrease in the price of many technologi-
cal goods, such as computer processors. But services limited by the availability of skilled personnel
tend not to decrease in price unless more skilled personnel becomes available (Crozier and Hajzler
2010, 172; Sandberg, Savulescu and Kahane 2011, 101). There is no guarantee that a large sup-
ply of well-trained personnel will be available and the same is true (as I shall later show) when
economic institutions satisfy the DP.
8. Parents would try to enhance their children, not because they want to play God, but
because they want to give them the best start in life (McGee 1997).
9. Conversely, many naturally talented citizens have little economic and social success
because of the lack of opportunities open to them.
10. Germ-line enhancements can be designed not to be inheritable (see Capecchi 2000,
68-69).
11. Indeed, it will be argued that the state has a duty of justice to mitigate inequalities due
to different initial social circumstances, for instance by subsidizing education at least for those who
are born in the least advantaged sectors of society and by taxing inheritance. If it is true that
genetic enhancement and education are analogous, this suggests that the state ought to intervene
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on access to germ-line engineering. This will be argued in part IV.
12. The Austrian economist Friedrick Hayek and his followers maintain that there is a prin-
cipled reason why market competition is needed in order to have an efficient solution to the problem
of resource allocation, namely only actual market exchanges take advantage of the tacit knowledge
(Polanyi 1998) which individual buyers sellers and businesses use when they decide how best to use
their own resources and are held responsible for the full cost or reward of their risks (Nadeau 2011).
This knowledge cannot be captured by abstract models such as those a Central Planning Agency
would use, because it is by its very nature “inevitably fragmented, dispersed, local and inaccessible
to any single person in its totality” (Nadeau 2011). Even contemporary forms of modern-day market
socialism (take Bardhan and Roemer [1992] as an instance) try to mimic markets in order to reap
the rewards of this; even non-proprietary markets – market exchanges that do not end up with
changes in the property of assets – are a distinct possibility that I will not consider here.
13. The concept of rough equality – the opposite of ‘extreme inequality’ as I have used it
– is employed by Rawls (1999, 358) to explain the purpose of the principle FVPL, mentioned in
the introduction. Rawls claims that a “roughly equal chance of influencing the government’s
policy and of attaining positions of authority irrespective of their economic class […] defines the
fair value of the political liberties” (ibid.).
14. The conclusion of the argument is in agreement with the claim that “political inequal-
ities are a proper concern of justice, independently of their propensity to create or sustain extreme
deprivation” (Buchanan et al. 2009, 6). However, Buchanan et al. argument for this claim, namely
that ‘inequalities in political power have the potential to exacerbate existing injustices and under-
mine justice where it exists” (ibid.), fails to explain how political inequality can exacerbate injustice
even when it does not sustain deprivation and even if inequality of political power is not unjust in
itself. What is the morally relevant feature of political inequality that makes it unjust (sometimes)?
Buchanan et al. do not assume that this inequality is unjust in itself: they concede that ‘some
inequalities in political power are not unjust, including those that result from special excellence
in the qualities of political leadership” (2009, 5-6). The argument in this section explains why and
when political inequalities are unjust.
15. Because free citizens can choose to invest their time and energy in different kinds educa-
tion and careers and these investments yield different abilities and opportunities.
16. This conjecture is confirmed indirectly by empirical studies that show that the inter-
generational transmission of income and status in American society is mostly due to social factors
(see Bowles, Gintis and Osborne Groves 2005). The result is robust with respect to the assumption
of high values of IQ heritability, near 70% (ibid., 11).
17. Education as traditionally conceived is compatible with using more resources for the
education of the most, rather than the least naturally talented individuals. This inequality is justi-
fied on grounds of efficiency. This value is relevant provided that the demands of rough equality
have been met, as they are already at this stage in the traditional scenario.
18. On the other hand, it has to be acknowledged that regulation of germ-line enhance-
ments will also be practically unachievable in the absence of international agreements, because
people seeking enhancement will simply travel to other countries without such bans in place.
19. This scenario is described in the 1997 movie Gattaca directed by Andrew Niccol.
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20. I am deliberately excluding from consideration citizens who are constitutionally unable
to enjoy the worth of their liberty because they are affected by severe congenital diseases. This suits
the methodological considerations about the scope of the paper highlighted in the introduction.
21. Bognar, “Enhancement and Equality,” in this issue, p. 24.
22. For a thorough examination of the inter-generational aspects, see Agius 1998.
23. The author wishes to thank Darryl Gunson, Theo Papaioannou, Alfredo Tomasetta,
Nicola Riva, Lorenzo Del Savio, Oliver Feeney, Greg Bognar and two anonymous referees for
their comments on different drafts of this article. Research leading to this publication was funded
by the Italian Ministero dell’Istruzione, dell’Università e della Ricerca, project FIRB 2006 “Bioetica
della genetica: questioni morali e giuridiche negli impieghi clinici, biomedici e sociali della genetica
umana” and supported by the Fondation Brocher in Geneva.
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