I don't think consumers know exactly how these devices could be accessed - the assumption for almost anyone is that cameras and microphones don't turn on when the user doesn't know about it. Were there a company that did such a thing the backlash would still be incredibly strong I think - even the most anti-privacy "I have nothing to hide" person would object to their watch microphone turning on in their bedrooms. Unfortunately we need to get to the point of having some real public privacy disaster for the public to pay attention. We have wiretapping and recording laws for a reason - the idea that people give their right to privacy up to a EULA on a daily basis is a false choice - either stop engaging with the world or give up your privacy to the goodwill of a company. There'll be a tipping point sooner or later.