Well, I don't understand, as the parallel seems obvious; you're meeting with a group of people and you can see them and they can see you. If anything I feel freer with the camera, as others' visibility of me is much more limited than in person. I like cameras in meetings for exactly what you say, reading others' faces, attention, body language, non-verbal cues, etc. Without being able to see people I find it much harder to understand them, and to be sure they're understanding me.