Two of the people who have accused lucas of creating this current hollywood mentality, albeit very quietly are Martin scorcese and francis ford coppola.
Francis Ford Coppola even went so far to say that star wars has robbed the world of any "good" film george could've made, because of it's monster success. He thinks George should've made the advant garde films like he made at usc and thx 1138, the kind of films they talked about making at american zoetrope.
Scorsese's beef is that it is almost impossible to get grittier more violent, serious films made these days like they did in the sixties. Taxi driver for example. Movies like that got killed by a little movie called star wars.