IMO the reason social took off is that everyone bought into the idea. That means you want people from all walks of life be a part of it and possibly fund it via the folks who are willing to pay for it: Take strava for example.

The equivalent for regular social sites would be in my mind a service that blocks tracking/user data collection ads etc. - essentially everything people are worried about for a price. If you don't pay the price, you get the 'basic' model where they make money off you by other means.