Make it a "third sector", properly audited NGO (watchdog, thinktank, foundation ...), with ties to some appropriate umbrella (UN, ICJ), that uses some sort of blockchain solution to fine as needed, and then allocate compensation from this to aggrieved parties, or social programs, compensating not only for loss of privacy, but for the other nasty effects (fake news, emotional distress, political polarization ...) that F'book is causing.-
Otherwise, our souls are just another cost of doing business to them.-