> If they get a match with a high school picture for "John Smith" from a school in an affluent area, they can adjust advertisements.

Right, it's not like they gather location data and insist on real world names or buy data from brokers or use cookies. Facial recognition is the missing piece of in the puzzle!

> If your face appears in a riot, they can resell the information to the government.

It's not like governments have databases with photo identification.

Being able to do it before has never stopped meta or google from wanting to do it harder and more effectively.