This statement most resonated with me. I had to give up playing hockey because - at the lowest grade - people paid no respect to you. If they could kick the ball and the ref didn't see it, they would continue play. If they could hit the ball hard at you from point blank, that is fine.
You see similar in elite sport, players in "football" of whatever code. Everyone knows it. A professional player who breaks the rules is expected to play on as if nothing happened until the ref calls it.
At this point it is not a game, it is a grudge match.
The win at all costs mentality costs one themselves.