Who defines good and evil?  The greatest butchers of humanity are those who actualize their dream of earthly utopia and sociopolitical reform.  The libertarians blithely ramble on about property "rights" and theft without even considering the fact that "property" is defined via legal statutes of the very state apparatus they denigrate.  The socialists ramble on about some nonsense regarding the "rights" of the proletariat without recognizing their "rights" are nothing more than whimsical demands of useless intellectuals, who never stepped a foot inside a factory or a farm, subsidised all their life by wealthy capitalists.  The Aztecs preserved the world by ensuring the sun was reborn each day with gifts of regular human sacrifice.  The North American natives practiced ritual torture in their religious rituals.  

All the "evil" men commit are different perspectives of men striving to do good.  Even modern "war," in which women and children are inexplicably spared, which some consider "progress" or "good," is insane cruelty, since such "mercy" is nothing more than lazily establishing truce with your enemies, in order to conduct war against their grandchildren.