Beyond getting things done, I read recently that older, experienced developers shape culture. It is really true, and I didn't realize it until recently. You have much more obligation when you are older to act in the way that you want your team to act and approve what you think should be approved. You are usually a mentor and role model whether you want to be and think you are or not, and you can't just work hard and that rub off on your team; you need to show them how to help themselves rather than do their work for them, otherwise you're setting yourself up for problems.
I know someone whose camera and microphone were taken over. A window showed on her computer where the person watching her chatted with her and told her things that he only knew because he was watching her. It scared her to death and made her cry.
Beyond blackmail, it is probably close to the psychological equivalent of a stranger just suddenly appearing in your home watching you.
I think that every electronic camera and mic device should have a hard switch/button that physically disables both the camera and mic. Having to use tape or a cover does not keep you from being spied on; it only eliminates the visual spying. The attacker can still listen.