It's an ancient idea that the leader of a democracy should not be the cleverest but the most average. That's an arguable point, but the world has decided otherwise - except in America, where it still divides the country right down the middle.
I think a lot of the instincts you have doing comedy are really the same for doing drama, in that it's essentially about listening. The way I approach comedy, is you have to commit to everything as if it's a dramatic role, meaning you play it straight.
The action pictures I've been typically involved with, when somebody gets punched, you really feel the punching, and when somebody gets shot, you really feel the shot.