I dont see how you can say professionals do nothing and get paid alot. They work their ass off to say fit so that they can compete and some other guy dosn't take their place on the team. It also requires a tremdous amount of mental skills too, football players have to memorize hundreds of plays, baseball players need to think about every situation that could happen on the feild and be ready for it, etc.
Belive it or not, Sports actually do matter to billions of people around the world. Just because you don't like sports dosn't mean the whole world dosn't like sports.