That's dangerously close to the thinking that if you've done nothing wrong, you have nothing to hide. The US Fourth Amendment right against unreasonable search

That's dangerously close to the thinking that if you've done nothing wrong, you have nothing to hide. The US Fourth Amendment right against unreasonable search and seizure means that we, as a society, are OK not detecting all crime. But this doesn't feel like a commonly held value these days. "If we can save just one life..." is considered a valid argument for excessive safety protocols. Not far from "If we can detect just one crime..." (Not necessarily disagreeing with your point; indeed, maybe that was the thinking.)