Allright, that makes sense.
"Fixated on retaining one's potency" - I know this from sports, for example. In order to stay fit, I had to train very hard, it occupied my mind a lot, and I was always very selective whom I associated with in terms of sports, and on what terms. There is that peculiar tendency to keep certain information to oneself, such as titles of books that deal with explaining some training or dieting principles. Also very selective about whom I would train or compete with.
Of course, the better one gets, the more one is willing to share and be flexible, but there always seem to be limits to this.