The cost of winning is the potential risk of losing.
In a match, in business, in poker, in love, in any game or any pursuit worth winning, you must risk losing to enter the game. You must risk failing in order to win. Without the risk of loss, there is nothing to be won.
Should it be that winning is worth anything without the possibility of losing? Should any worthwhile pursuit be truly worthwhile if not for the risk of failing? Does one jump without risk of falling? Does one not shoot for the stars if only to hit the moon?
If not for fear of loss, for what else might we shoot? If nothing, then what?