If they changed it would be suicide. Their whole raison d'être is around privacy and no censorship.
Then, Google just went and deleted "Don't be evil" from their manifesto. Literally they did that. That's like saying "Yo guys, we are evil now".
And what happened? Nothing. They are fine.
I'm hopeful the new generation of people growing up without privacy will learn to value it as they mature and control of their internet history is something they have to deal with.
Make laws with teeth. Look at HIPAA for example. The penalties are severe and therefore compliance is strict.