Brave New World, indeed!
Whether it's neuro-enhancing drugs or cosmetic surgery... a person who chooses these options is saying that they're not "good enough" without that "something" else...
... and it's a seductive argument, in my experience... one that leads to emotional dependence, at the very least. But, I also wonder if these people base their self-worth only on those L-brain qualities: quantity of work, ability to pay attention/focus... and if perhaps they do so at the expense of r-brain feelings of well-being... contentedness.
I would also worry about long-term effects to the brain - surely, they're trading something years from now, for the immediate gratification of the drug's effect.