The humor is essentially dark for a cartoon and sophisticated. But at the same time being a cartoon gives the writers more freedom than in a normal sitcom. It always pushes the line that despite human failings the Simpsons are really decent people.
It's like you always have to put on a happy face be the phony baloney and I'm so not that. I never was that I'll never be that. That is part of the business that I don't like. Maybe that will always keep me an outsider I don't know. But that's fine.