How much of that $500K do they clear after taxes, agent fees, accountants, etc? Then just living life and or supporting a family?
Sure, it is feasible that with "a little money management" they could be millionaires. My 75% figure was admittedly an exaggeration. I think it is silly to assume all players are spoiled millionaires as if they all had big signing bonuses or didn't work for years under suppressed salaries before making bigger dollars.