Are winning players really a bunch of wussy's or just smart?

For the most part my attitude when playing poker at the level my BR will allow is to play anyone and everyone "No Fear". I might table select but I want to be able to play and beat anyone at that level and therefore my competition is hit and miss. We all know experience is one of the best teachers in the game. Usually you have to lose your ass to learn and get better and I'm very OK with that. BUT, on the other hand "if" your in it for the money then you are looking for any edge you can. Therefore you still have to be a good enough player to beat the rake and the avg. fish. On the other hand this isn't going teach you any hard lessons. I'm not saying you can't learn from worse players than yourself because you can. It just seems like once your able to "beat the game" then one is always looking for the easy way out so to speak and play the softest games possible for money in your hip pocket. Are most winning players being a bunch of wussy's or just being smart?