Stop exaggerating stuff to suit an agenda man Adam.
Cheating isn't allowed in football ffs, just diving and feigning injury isn't as serious as match fixing (something we've seen teams seriously punished for). You can also hardly dive to gain an advantage in a athletic event
I've also seen opponents argue in the team events, i've seen people argue with the referee, I've seen people throw their rackets in frustration and even someone initially refuse to accept their medal.