>What I meant was that the importance of concentration (or really any drug-enhanced something) varies a lot by activity.
I think it's important not to undersell the universal utility of focus. Even if you ignore the obvious physical advantages afforded by PED-stimulant drugs, like decreased reaction time or increased endurance.
If you model decision making in a zero-sum adverserial context like football or chess as an OODA loop[1], then a drug that decreases your processing time and decision making time is going to grant you an advantage by shortening that OODA loop.