I would also prefer this for social networks like facebook. They should have an additional option where they store none of your data and guarantee not to track

I would also prefer this for social networks like facebook. They should have an additional option where they store none of your data and guarantee not to track you. As a compensation the user would need to pay money for using the service. This would also put a price tag on privacy and show people what they actually give away when they use the service in the traditional way.