I was passing by a bus stop in LA that prominently displayed a movie ad. It had the usual “movie title”, and the usual tag line: By the same folks who brought you “movie a” and “movie b”. I thought: they already made that movie or something like it. Why do it again?
We have movies because there are people who are good at making them. They also enjoy it. The people with that skill and talent will want to do more of it, without really questioning why or whether the world needs that. It doesn’t matter. Everyone is programmed in a certain way and they will execute their internal program. Some might make the effort to justify it, but it doesn’t matter. We have to execute our program.
Different people execute different sorts of programs.