As Baca is getting at, addressing the 'morals' of sport is ineffective - because you assume that everyone should share your morals. And maybe they SHOULD, but they WILL NOT.
If you could get desired results with morals, nobody would steal from anybody because everyone would agree stealing was wrong. But people steal anyway, that's why we have laws against it and penalties for it, so at least GREEDY people might not steal, regardless of whether it's moral to do so, because they don't want to go to prison.
Now, you can sit there and say it's wrong to cheat, and in your value system, that may be the case. But I can also believe that it is wrong to be cheated. And in my value system, if someone is cheating me, I'm going to cheat back. Frankly, I don't think that's wrong. I would much rather have the league penalize the cheaters so I could play a fair game of paintball, but since I can't play a fair game of paintball, and I still want to play paintball, cheating is the ONLY moral choice I have. Because letting myself be cheated is wrong.
That's the problem with moral arguments - they only work on people who share your morals. If you want people to act according to your morals, regardless of whether they share your morals or not, well, that's what guns are for.
There is nothing 'moral' about saying "This guy keeps hitting me in the face, but it's wrong to hit him back." That's just stupid. Some people would say the moral thing to do is to leave, and some people would say the moral thing to do, after someone insists on continuing to punch you in the face, is to take whatever action necessary to make them stop. But no one would expect someone to just stand there and keep getting punched in the face.
Expecting players to keep playing the events and keep playing honest is like expecting someone to stand there and get punched in the face. Some players will stop playing and some players will do what it takes to get a fair chance at winning. Blaming the players because they don't want to keep getting cheated is stupid.