Pursuance by the ICC doesn't actually result in punishment of the leader; empirically, it has actually strengthened criminals' power after criticizing them.  Nations, such as African nations like Chad, have painted the actions of the ICC as signs of Western imperialism and domination. Sudan's Bashir, accused of genocide and other crimes against humanity, used the ICC's arrest warrant against him as a sign of heroism and created a rally-around-the-flag effect, further strengthening his regime. Moreover, the ICC's work encourages leaders to cling to their power rather than give it and face prosecution, making punishment even more difficult. At worst, the ICC is actually counterproductive when it comes to punishing leaders and giving them retribution; at best, it is simply an ineffective court.1  1 "The International Criminal Court: Why Africa Still Needs it." The Economist, 3 June 2010.