Floyd Mayweather
Arguably the greatest defensive boxer of all time, Mayweather enjoyed an incredible career. He went 50-0 before his retirement as he forged an amazing unbeaten record. However, there’s no denying that he is a controversial and problematic person. Mayweather even served time in jail for domestic violence.

In the end, money talks, and Mayweather has more of it than any athlete ever. Fans continued to flock to his fights despite his sordid history. Meanwhile, boxing promoters didn’t care because he made them very rich. Unfortunately, the boxing world is corrupt and doesn’t care about right or wrong (via Fox Sports).