Why is the biggest TV ratings star in sports getting paid about the same as an office manager in a moderately successful company?

A couple years ago a friend ran into the second-string center for the Portland Trailblazers in town and I guessed as a bench warmer who only played a few minutes a couple times a week he probably made like 600-800k a year which was about double the NBA minimum salary until I looked it up on Wikipedia where his salary was listed at $2.4M/yr