And laws are only as good as their enforcement.

Taking GP's example further, let's say they have enough money to build their 3000W sound system AND maybe also build a cushy new building for the local police, who will then respond to your noise complaints by telling you it's really not that bad and maybe you should invest in some noise-canceling headphones.

But the noise from a data center is exempt. And if their water use exhausts the local aquifer, too bad for the locals.