Really, the original vision 20+ years ago (i.e. Rainbow's End), was that the user would have an overlay of the world they wanted to live in.
Where your pub might appear to you to be swords and sorcery world, with an orc for a bartender, the bartender would be in a sci-fi world and you would be a robot.
The cameras were needed to keep track of the real world.
I agree though, and this whole pervy use case wasn't really envisioned as much then.