Does the amount of money you are paid buy the right for an employer to ask insulting or intrusive qu

This week the NFL came into the public eye when the General Manager of the Miami Dolphins asked Dez Bryant, a potential player: "Is your mother a prostitute?" This is probably not a question one might expect applying for a bank vice president position, but in the NFL, where a player could earn over six figures and be a role model to millions, are such questions kosher?