[temujin]

In practice, the question is if getting to X+n:Y is more than ten times as expensive as getting to X+(n/2):Y+(n/2), does it still make sense to prioritize the former?

This is not an argument against the "Hidden Genius Project" discussed in the linked article; it's clear that Mr. Young's comparative advantage does in fact lie with helping other black men, so you'd still want him working on that even if the broader goal is getting to X+(n/2):Y+(n/2).