First: Health and Wealth are simply not in the same league. There are billions of human beings short of cash and still enjoying life - but if you ruin your health, a pension pot the size of Fred Goodwin's will not compensate.
Second: If you engage in brinkmanship how does it look to everyone else? Inevitably they will say: Well, he pushes to the limit therefore I must do the same.
As one of the great Old-Timers used to say: This can only end in tears.