Mythopoet
Auror
I think that people are at root "morally problematic" individuals, and some authors can tap into that for literary effect.
Oh absolutely. But the question is, what effect? And should an author at any point try to make us sympathize (feel emotional togetherness) which a truly reprehensible character? Personally, I'm leaning strong toward the "no" side of the debate, but I'd be interested in hearing any arguments as to how and why it can be a good thing.