A person's moral or emotional nature or sense of identity.
Man, if you do not compete among others, how can you get your own feeling for a sense of identity, or where you fit among others. The fibers of person's moral identity is about interacting in life and competition is an important fiber to that being. There are many other fibers that contribute, experiencing love, hate, acceptance, rejection. But competition is something that all the individuals you mentioned had as a fiber of their being.
You know, in T-ball, there are no winners or losers. You put a ball up on an inanimate object and take a swing. No pitcher to challenge the batter, no chance for the batter to experience how to adjust to the arch of a curve ball, or the hover of a knuckle ball. Competition here is being able to react with another human, challenging you with the chance to improve on a skill. That is experience. That is how we develop soul. Until you come to realize these truths, may the Lord have Mercy on your Soul.