There's probably no reason for you to go around disabling hardware etc. You're aware enough of the implications and risks, it's possible you'll get pwned but not too likely. (Honestly I'm more personally worried about the inconvenience of Google nuking my gmail for no reason than anything the NSA might be up to.) Some of my coworkers cover up their work laptop webcams by default. I don't, the realistic threat model is IT or some other company representative spying on me, and I don't really care about that. If I find out I'll quit and I'm sure there will be lawsuits anyway.
All that said, I never liked the "well one day the government will accuse you of a crime somehow or otherwise severely limit your speech" argument. To me the better counter-argument is: "Fine, you don't care at all, you don't have to care. Similarly some people are super paranoid and live in a faraday cage etc., they can do that all they want. But a lot of people care to some degree in between, and a lot of other people are uneducated or unaware of the actual risks so aren't even aware of the problem that they could decide to care/not care about. If you don't care at all, again that's fine, just get out of our way as we try to protect people by default. Mass education of every issue is infeasible."
All that said, I never liked the "well one day the government will accuse you of a crime somehow or otherwise severely limit your speech" argument. To me the better counter-argument is: "Fine, you don't care at all, you don't have to care. Similarly some people are super paranoid and live in a faraday cage etc., they can do that all they want. But a lot of people care to some degree in between, and a lot of other people are uneducated or unaware of the actual risks so aren't even aware of the problem that they could decide to care/not care about. If you don't care at all, again that's fine, just get out of our way as we try to protect people by default. Mass education of every issue is infeasible."