I have to say, that "My Big Fat Greek Wedding" was worth seeing. Yes, Tom Hanks is involved, but he's not the worst person in Hollywood.
If the entertainment industry doesn't see that good stuff can make a buck, and trash won't, they will gravitate in the right direction eventually. Why shouldn't market forces prevail in this industry, too?
You misread my comments completely. They don't care if no profits arise from the filth they produce. They use the profits from the family friendly movies to purvey their filth.