dude is 6'8" and not in the NBA, in a year or so his swimming "career" will be over and he won't have a penny to show for it.
the minimum NBA salary = $442,114
the average NBA salary = $5.2 million
Beside the fact that he need to be a good player to get into the NBA, you forget the endorsement deals and government bonus Olympic athlete's get. I'm sure he is doing some pretty good money now.