No they can not
The Olympic games are about bringing the best athletes from around the world to compete in events. Athletes compete for the chance to win the gold medal.
About 2,800 athletes are expected to compete at the 2014 Olympics.
The US has 596 athletes competing in the 2008 Summer Olympic Games.
It varies but, 10,568 competed at the London 2012 Summer Olympic Games and about 2,800 athletes are expected to compete at the 2014 Winter Olympics.
For international fame.
No they cannot be paid if they compete in the Olympic games, they are amateurs until they are paid professionally, then they can no longer compete in the Olympic games.
According to the United States Olympic Committee, the US sent 613 athletes to compete in the 2004 Summer Olympic Games in Athens and 211 athletes to compete in the 2006 Winter Olympic Games in Turin.
it be unfair if they joined in