Seems like that would dramatically exacerbate the have/have not gap that the article talks about earlier. And, corollary: imagine a world where our rogue traders, mafia bosses, used car salesmen, cult leaders, and con artists are all realizing gains from cognitive enhancement.
For fun, try a limit analysis: imagine a world where all your rivals in business are dosed up on your nootropics. You're now in the position of having to consume mind altering pharmaceuticals in order to retain your job, with some completely uncertain future cost to your health. Or you could conclude that the risk isn't worth it, and instead try to make a career in a lower paying field suitable for 'unenhanced' people, probably something dangerous and physical that robots can't quite manage yet.
It's frightening that the author thinks this is a good idea. I am clinging to the hope that this was put together by some disgruntled college kids who want the benefits but can't quite stomach the risk of buying black market Adderall.
EDIT - good: it got flagkilled. Horrible article.