Good luck finding any nontrivial law that applies to each and every instance of a human construct. “Money can be exchanged for goods and services” until you show up at a store with 10 kilograms of 1-cent coins. A single violation (or even many) don’t mean the underlying law (or rule or principle or guideline or whatever ‘less strict’ version you want to call it) is bad.

Newton’s gravity is wrong. There’s no arguing about that. But still every middle-schooler around the world learns it because it is ‘good enough’ in all but extraordinarily special cases.