Athletes are prominent figures in our society. With success and high income, they attract all kinds of people who want to associate with them.
Athletes need to train for hours on end, not just to make it to the pros but also to remain there. This time keeps them away from their families, but helps build team unity.
Just like the rest of us, they face temptation and sometimes they give in. However, in these cases, the temptation came in the form of one of their teammate's wives and these guys broke the unwritten code amongst teammates.