Censorship doesn't help.
There is a spectrum of art, the exceptional art, the good art and the pathetic art. The pathetic art makers who make it pathetic intentionally are doing it because they are only after money and keep repeating it because that is how they have to make it work. But if you come up with Censorship as a solution than what really happens is there is a ripple effect of that censorship in art that would have turned out to be exceptional art. The movie makers mostly are thinking to make their reach like some great comics have, but the problem is the timings have changed. The only superhero, people had some 20/30 years before was Spider-man type genre. And because that was the only one available there or very few (few superhero characters/ superhero writers) of them, People had a good opportunity to taste another type of genres too and they might have quiet made their taste better from it. But now, the amount of superhero writing and movies movie makers and writers have inserted in the market,