Answer:
Step-by-step explanation:
There is two types of evil in this world. Those who commit evil for personal gain, and those who commit evil on ideological grounds. In the case of the latter I’d say very few if any of them ever see what their doing as ‘evil’, and that’s what separates them from the former.
People who commit evil for personal gain may know what their doing is evil, and simply not care.
I’d say historically Hitler would fall into the latter category. And moving into the realms of fiction, Emperor Palpatine from Star Wars would fit into the former. - Quora