A good example is taxes. Many people think the 'rich', including the rich, should pay more. Every tax form in the US has a spot where you are free to write in a larger amount to send, but I wonder how many actually do? Unless the game ends collectively, it doesn't make sense to stop playing. I will continue to pay as little taxes as possible until the game is changed.
The point of the saying is that the player is not necessarily in position to change the rules, or at least not in the immediate short term. How far one wants to accept this as acceptable reasoning is a subjective matter.
Or maybe not that subjective when looked at closer. It may just as well be a saying that the entitled classes use to defend their selfish and less than good behaviour. Beacause the classes of the not-entitled buy this as somehow having reasonable meaning.
The entitled classes have no reason to change rules that are clearly stacked in their favour. But it sounds way better to say the rules cannot be changed. But it is hard to see why this should be self-evidently true.
