Have you ever looked at what it means to be the force of good in the face of evil when it comes to entertainment mediums? If you look at every situation, being good means to maintain the status quo, or attempt a return to a previous situation. I really can't think of an instance where being the "good guys" means "the guys who want progress".
For example, Star Wars. The Empire wants to unite the galaxy for god knows what reason. In doing so, it modernizes its army by several huge jumps, creates tonnes of jobs, becomes an extremely efficient machine, and maintains order through law (and to some extent, fear). Sure, they blow up a planet now and again and commit genocide here and there, but the net result is they got things done and there was actual, technological development. Whereas the Rebels want to return to a time where for 10,000 years, nothing happened and the same blaster used 10,000 years ago is more or less the same as the one used at the end of the Galactic Republic.
I can think of countless anime where factories, work, cities, all represent evil and badness while forests, idle land, and peasantry all represent good and holy stuff. Someone is always automatically evil, or bad, the moment they want to industrilize something or revolutionize something whereas someone is always good the moment they fight such principles. Sure, the villians always end up dressing or acting the part, but if you think about it... what's so bad about what they really want to do?
This is completely contrary to real life, where such rules don't exist (whoever wins the conflict writes history) but really is more of an entertainment thing. What do you think? Why do such principles exist? Do people automatically associate change with evil and bad?