The "pay off" the commenter is talking about is the results in the sport, not the monetary gain. Cyclists are like the engines in an F1 car. Not saying there is no skill involved, but any skill differences are irrelevant if the other guy is putting out 100W more than you over 200km. So it really comes down to raw power to weight ratio.

That's not the same in basketball or most other sports. You can't just jump on gear, lift weights and suddenly become Michael Jordan. Plenty of people could beat Pogacar if they could use anything they could, though, just like manufacturers could build an F1 car that would dominate every race if they could circumvent the rules.