To borrow an idea from Nilay Patel of The Verge, all the other items in the parent comment describe consumer products. People like smartphone cameras and cheap TVs and effortless data backups, and they'll put up with some significant problems if it gets them great consumer products. When it's a concrete benefit weighed against an abstract harm, the benefit usually wins.

A massive network of surveillance cameras is not a consumer product. For most people, it's an abstract potential benefit of crime reduction weighed against an abstract definite harm to privacy. Definite usually wins against potential.