Even if people end up doing awful things, you can empathize with their motives when you know them. When you get to know the person, you can understand why they make those choices, even if they're bad. And oftentimes people do have good drives that are sympathetic and can even be seen as selfless and good-hearted.
Bob OdenkirkNot to knock the people who've given me the opportunity; I appreciate all the opportunities I've gotten, but one of the things I think I really learned from the features I got to direct is that your job as a director is everything about the movie. It's to pick a story that's really worth making, and make sure that the basic components are there. You're not just a part of the team. You're really in charge, and the responsibility falls on you if all the components aren't there for a worthwhile film.
Bob Odenkirk