If you are the kind of guy who draws in 100 million people to see his film, you've got every right to be paid accordingly, but I qualify as a character actor. I don't put a bum on a seat.
Part of the reason why so many actors lose the plot when they go over to America is that they become part of an industry, so that's why they don't want to play weak, bad or vulnerable guys - because that's not sellable; that diminishes their profit margin.
I love acting. It's the one job I know of where you can go in, go through complete catharsis - emotionally, physically sometimes and mentally - and at the end of the day say, 'See you in the pub, guys.