Given the history, let's just say I'd be skeptical about the former, and much more inclined to the latter explanation. In this case, the means justify the end.
For example, they both agreed that prayer was an important component of "Braveheart." Wallace was less successful in getting a religious element into "Pearl Harbor," but from remarks he's made, I get the impression he tried.
--------------------------In a way, they are following the money. -- Individuals pay the box office money, and individuals are getting more aware that really big government is hazardous to their health.
IMO, everyone, even hollywood moguls, have come to the conclusion that societies control freaks have gone too far.
I think there's a little bit of everything in this stew. It seems that following the money has led Hollywood to begin to acquire something resembling a backbone, though it seems to be weak and vulnerable and could easily revert to spinelessness if the bucks dry up. Also, I do believe that the shift in values that is taking over, ever so gradually, as the baby boomers age and become the predominant market in the US, is affecting Hollywood. But bottom line, I think it's the money driving everything in Hollywood.