What is naïve and blinkered is the insistence that fictional characters be held to the same moral and behavioral standards we expect of our friends. It seems to me that part of the point of literature is to enlighten and expand, and there are few pleasures in fiction that expand our consciousness further than getting to observe the world from the perspective of characters so different from us, so thoroughly flawed, that if we were to encounter them in real life we wouldn’t like them very much.