I tend to think of action movies as exuberant morality plays in which good triumphs over evil.
Most action is based on redemption and revenge, and that's a formula. Moby Dick was formula. It's how you get to the conclusion that makes it interesting.
When I tried to branch out into comedy, I didn't do very well at it, so I went back to doing what I do naturally well, or what the audience expects from me - action pictures.