it's much more innocuous, to the point that many people can't even tell you're recording or wearing anything special that's sending your image directly to facebook, especially if you drill out the notification light (which many perverts do do)
generally here in germany there's a right to privacy if a person is your primary subject, even in public. you need their consent. there's a difference between people being in the background and only incidentally and going up to people and "appreciating" them with a recording that facebook sees and also the whole world sees because you post it online as a way to signify your power over innocent women