Pinochet. He was an asshole who engaged in war crimes and gross violations of human rights but he turned Chile from a country where those crimes were standard into a country where he could step down and be charged by the government he created with those crimes.

Ermm...so he stared doing bad things, then he stopped, and that makes him good? Those crimes weren't standard before he was in power, and he had to stop because of a shift in policy by the US, not by his own volition. And he managed to evade punishment for his crimes. So why is he so great again?