...if the guys who win big don't really care about the money, why do u see so many of them living frugally?
By "don't really care about the money" I think it means they don't necessarily define their personal value in terms of dollars. So the reason you don't see them living large is because money isn't the primary source of their joy, satisfaction, contentment, dignity, worth, etc. But, this does not necessarily mean that they don't have a healthy respect for money--and that sense of respect might be why they choose to live frugally.
