This is hypothetical - the glasses don’t fact-check what people say, they somehow detect willful deception, like people expect polygraphs to do, but with high accuracy. Would people welcome these, fear them, object on privacy grounds? I think it would be very contentious. Would people feel different if they only fed the information to the wearer but didn’t record or send it anywhere? What exactly would the issues be?
Yes, to me it seems like that would create interesting social changes that I don’t think are easy to predict. Sales and marketing might become more straightforward and fact-based, with less building up of expectations that aren’t real, and less waving of monkey puppets. Conversational behavior could also change - “I don’t want to talk about that” might become a common euphemism for “the truth is uncomfortable and I know you can tell if I’m lying so let’s not go there.”