I think there must be some misunderstanding.
My point is that everyone will have to deal with not being the best. For the vast majority of people being the best at anything is out of the question, regardless of effort or focus. Even if you are one of the lucky few who can be "the best", it'll only be for a moment in time. All of us age and our capacities fade. Then you're left dealing with the additional burden of having once kissed the sky and now being earthbound like the rest of us.
The whole point of the philosophy is finding something else to focus on other than the (true but depressing) objective rank-ordering of you among your peers. Leaderboards are useless to all but a chosen few.
However, everyone (even the ones that will place on the top of the leaderboards) can benefit from taking their focus off the leaderboard and putting it on their own process and effort (in some sense replacing the comparison to others with a comparison to their yester-selves).