An automated system that scans friends galleries to find my face in their galleries maybe would be helpful. Then I would see who uses my face in what context, so I can react; maybe send a polite request to remove me from the picture, set it as private, or simply remove the picture from the gallery?
Or maybe an approach based on spreading disinformation would be enough, so I could produce fake photos of my face with other randomly chosen faces from all over the internet, so that face-gathering systems will store fake relations between me and some random people?
There are lots of methods we can use to defend ourselves.
The "ban something" approach works only for parties that are willing to cooperate. But it's not the cooperative parties that we should be afraid of, it's the uncooperative ones.