define "jerks". In a book/story it is rather easy to come up with either black or white characters (speaking from the moral and actions I am just saying you can toss them in situations where it is easy to construe the event to lead them to the choice).
But actually regarding real people with a few exceptions aside it is extremely difficult to paint them as only "bad" or "good". It all depends on the context and view point. Alexander was seen by some as conqueror and oppressor while by others as liberator. Even the Nazis have been seen by some as "liberators" from the stalinist system - till the point where they realized that it makes no difference who they support.
As said. Speaking from history it is rather rare that an event is only bad or good. To many factors which come in to play.
But actually regarding real people with a few exceptions aside it is extremely difficult to paint them as only "bad" or "good". It all depends on the context and view point. Alexander was seen by some as conqueror and oppressor while by others as liberator. Even the Nazis have been seen by some as "liberators" from the stalinist system - till the point where they realized that it makes no difference who they support.
As said. Speaking from history it is rather rare that an event is only bad or good. To many factors which come in to play.