The hedonic treadmill runs both ways. I'd venture many people successful on paper are driven by the need to escape something, for me, it's financial insecurity even though I was never poor nor am I close to it right now. If I were to be as financially successful as this fellow, I think I would soon find myself back to having the same fear\ or finding something to substitute it, regardless, the feeling or mood would be the same
Radical acceptance with savoring the moment itself works for me but it's definitely a Sisyphean (to stick with the ancient Greeks) endeavor to keep up.