Ask HN: Why aren't Gov's doing anything about Facebook, Google etc?

Is there any specific reason?

I mean I understand that I sign up with a service and agree that they can use data to advertise on me... but they go into the extend of monitoring my private messages and present me with stuff that I've confidentially shared with another person or a group but not with them.

Is there nothing we can do as a whole to force GOV's to regulate those companies when it comes to advertisement?