Mel Gibson is not the first actor with conservative leanings to be corrupted by Hollywood. Clint Eastwood seemed like a patriotic traditionalist at one time, but is now in the iron grip of political correctness, having produced enough trash to be rewarded with a shelf of Oscars. The message is not lost on others looking for Oscar glitz.
I think Mr. Eastwood has always claimed to be a Libertarian. So I wouldn't put him into the Conservative lump.