Sure it is, but we're not talking about guys who have only recently hit the jackpot. People like Del Piero, Emerson and Vieira have more than enough money to continue their lifestyle. Of course you also have the betting lunatics..
Sure, you deserve that money, but it's not as if it's going to make you any happier. If Milan offer me five million a year to play for them and Juve offer me three, I'd choose Juve in a heartbeat.