Don’t be daft. These people dream of making movies and love doing it. They know if they don’t do it under the terms the studio demands, the movie doesn’t get made. They have no leverage and will be replaced by someone willing to work on the studios terms if they don’t agree.

So they can either work in a field they are very passionate about and be exploited, or do some soul crushing bullshit job in an office like the rest of us.