... These Ethical leadership in the scientific literature is analysed by distinguishing between different features that are very numerous and widely described (Treviño, Hartman, Brown, 2000:130;Brown, Treviño, 2014:588;Yukl, 2013:348). This study focused on the following features of ethical leadership, most commonly mentioned in the scientific literature: justice (Zhu, May, Avolio 2004;Zhu, 2008;Brown, Treviño, 2006a;Yukl, 2013); values (Avolio, Walumbwa, Weber, 2009;Brown, Mitchell, 2010;Zhu, 2008;Brown, Treviño, 2006a;Yukl, 2013); reliability (Treviño, Hartman, Brown, 2000;Zhu, May, Avolio 2004;Brown, Treviño, 2006a;Yukl, 2013); broad approach (Hannah, Avolio, Walumbwa, 2011;Brown, Treviño, 2006a;Yukl, 2013); motivation (Brown, Mitchell, 2010;Zhu, 2008, Yukl, 2013. ...