Or, you need to be pragmatic, realize that you're not gods and won't create a perfect system that can't be exploited, and instead tackle the issue from multiple angles while revising your approach as the exploiters attack.
Don't let the perfect be the enemy of good enough.
"good enough" assumes a lot about the rules of the game here. Imagine, the game is: "heads I win, tails you lose" and then read your comment.
Or, the market lets the gods do their work, rather than the government acting like one.
—esoteric capitalism
What are you trying to say here?