It's all senseless... and not to mention great fun!
A game like SOF2 which is not supposed to be about mindless violence because of the *cough* realistic, involving, and captivating *cough* story line is exactly that anyway. How many times while running around Hong Kong, or whatever, did you stop and think to yourself, "Must save the world from deadly genetic virus..." until a cut scene popped up to remind you of what you were doing. Take the cut scenes out and what have you got? I don't think for a moment that because I'm not trying to save the world that a game is going to effect me, or anyone else like me, any differently to any other similar game. Are you afraid it will get to you?