Hollywood is pretty much garbage. There is always going to be bad movies. I hate people saying "sex sells", no that's just what they want you to think.
While it is true that lesser intellects might enjoy sex appeal (which is different from sex) most people enjoy movies of substance (albeit sometimes regardless of content.... People will ignore whatever kind of messed up content if the movie has a good story and is very thematic).
Sorry, I'm a filmmaker myself. Therefore, I've studied trends in Filmmaking. The most popular movies (regardless of the moral content) are thematic and character driven... That's the important aspect of EVERY single film on IMDB's top 250...
If you want to fix Hollywood, you have to do it by making your own wholesome movies.
Of course, Hollywood is run by one thing: Dollar signs. That false idol that is money. I pray that they realize that money won't get them very fair, and they decide instead of trying to create and influence trends they simply make quality entertainment and follow moral guidelines instead of what sells....
Of course, this is how every industry is corrupted. Money turns otherwise good people into demons....
(modified to remove blatant disregard of forum rules - moderator)