I saw a cartoon on this not long ago.
Salesman: “We are offering a camera that will spy on you every second of every day.”
Customer: “No way. Why would I want such a thing?”
Salesman: “Then we would be able to deliver your brand of beer the second you ran out.”
Customer: “Hurry up and install it.”
There is a huge difference between Megacorp spying on us and the cops spying on us. Megacorp of course wants our money, but they intend to get it by giving us something we want more, and the more they know about us, the better they can serve us. The police just want to take our money, and likely throw us in jail for doing what we want. The less they know, the better for us.
Why they are watching makes a fantastic difference.