"You're right, but the percentage of Google users aware of how evil they are is probably less than 0.5%."

Not unaware of, just don't care. Most people aren't persnickety, anal, border line autistic nerds so Google/Facebook knowing who they know or where they are, when they're using software to tell their friends where they are or are using maps to literally work out where they are right now is just not an issue.

If you really don't want to be tracked you shouldn't have a smartphone, not worry yourself with what Vn+0.1 of an app is doing which Vn wasn't.