This is actually a really good point.

While complying with a regulation vs a business requirement may feel like the same thing in practice, there is at least an avenue to change the regulation via, you know, democracy.

when you modify your car, the manufacturer will often claim that parts of your warranty are void. That's not the legal system imposing limits.

But you're allowed to void your warranty. You don't have to have a warranty. It's not a real limit.

Yeah, but the manufacturer can't have some Pinkertons go to your house and murder your wife, sons and dogs over it either. You just have financial responsibility for whatever it voids.