petty would be a fan framing (obviously), but these are incredibly driven athletes - like i doubt any of us have a solid notion of what it takes (mentally, physically, luck) to get to that level - like if any of us worked with a coworker who had the drive of an elite athlete, they would be our least favorite colleague by a wide margin and we would question their mental health
Michael Jordan quit basketball and tried to be a baseball player - they can't just turn that competitive switch off