The one who wins the Powerball lottery jackpot often have the willingness to use that amount for the well being of the society and hence they donate large amount of money they won in the powerball lotto.
The people often want something that costs them nothing. Once the winners donate some thing everybody expects from him to give some help. Hence by giving help to everybody he himself cannot enjoy from that money and it might also happen that the winner goes bankrupt within very small period.