I'm sure one could bicker all day about the nature of morality, and the basis in which good and evil are taken from different viewpoints and differing opinion...
But as I see it, people are naturally good at an underlying level. Of course, like any general proclivity, it's often bent and swayed far into the dark side easily.
People don't do bad things because they're evil douche-bags, (though some are) They do shitty things because they've come up with a justification for doing shitty things. One doesn't go out and kick a dog because they feel like a masochistic jerk, perhaps the dog bit them once, or smells really bad, or has committed some action that one believes the proper recourse is a stern punishment.
Say someone cuts you off in traffic, it's not because they're jovially giggling about how much better they are than you (at least not for the transportational faux-pah) perhaps they're in a rush, or miscalculated timing, or didn't see you.
What I'm getting at, is that very few people go out of their way to be dicks, just for the sake of being a dick. They're jerks for the fact of their actions, but from their side, the actions are rationalized.
The question of good and evil lay with the subject, someone does something to you, and you must choose weather to view that action as a 'good' or 'bad' action, regardless of what it may be.
