For me, most comedy scripts fail in the mechanical playing-out of the setup. They'll pay lip service to a moral lesson or a psychological progression.
Harold RamisI realized that my righteous indignation was a form of entertainment for me. I loved getting pissed off at injustice. I didn't do anything about it, I just liked the feeling of being pissed off.
Harold RamisI feel a big obligation to the audience, almost in a moral sense, to say something useful. If I'm going to spend a year of my life on these things, I want something that I feel that strongly about.
Harold Ramis