Yet another good example of the saying "When a measure becomes a target, it ceases to be a good measure."

https://en.wikipedia.org/wiki/Goodhart%27s_law

I'm also reminded of a similar Chinese saying: 上有政策下有对策。 Loosely translated as "the higher-ups have policies, the lower-downs have antipolicies." The other analogy is squeezing a bag of water: if you push one place, another place pops out to compensate, and if you squeeze everywhere and too hard, it pops.