On SABC TV an announcer questioned why athletes get involved in such and questioned if the athletes are not loyal enough to South Africa.
In my opinion, the question of loyalty is just a little naive.
I believe that the issue is much deeper than what many people think.
According to Wikipedia, "In organized sports, match fixing occurs as a match is played to a completely or partially pre-determined result, violating the rules of the game and often the law. There is a variety of reasons for this, but the most common is in exchange for a payoff from gamblers. Players might also intentionally perform poorly to get an advantage in the future, such as a better draft pick, or an easier opponent in a playoff. A player might also play poorly to rig a handicap system.