People have shown that they'll just watch the one where people have higher performance. Not too many people care about the health of the athletes. Just take a look at football.
Also, I would prefer if we applied ethical considerations across the board.
We already see countries/coaches/teams pressing athletes to use performance enhancing drugs.
This exists in bodybuilding. The naturals are on more moderate steroid doses.
Should we then also make Adderal legal to be used at work?
Isn't it as long as you get a prescription?
The GPs point is that it is a stimulant that increases performance at the cost of heart health. Were we to make it legal while at work, people who were working without it would be at a disadvantage, prompting a "normal" worker to increase productivity at the expense of their health.