The context is a very different one. CCTV is everywhere, but you know Apple is really only interested in security, and maybe keeping track of their own employees. They're not going to randomly make some sort of art project from their footage without lots of discussions with lawyers. I'm pretty sure they'd also make sure to get written consent from everyone involved.

We can also expect a company like Apple would be very risk averse in this regard, and keep far away from anything too weird.

Some random guy doing their own project going by just whatever seems reasonable to them and installing surveillance software on somebody else's computers isn't really the same sort of thing.