Surely it's at least as much human effort to compromise a specific webcam, identify the house it's tied to, monitor it extensively, and then rob/assault the owners?
Obviously there are other reasons to worry about webcam access, but "they could spy on me to set up a robbery" is exceedingly low on my list since it just recreates a pattern that doesn't involve a computer.
I think it's more about the mass dissemination of that information. We've seen how easy it is to "Dox" someone without much information. One person might not be able to glean much, but what happens if 4Chan gets a hold of that data and has decided they don't like me?
Obviously there are other reasons to worry about webcam access, but "they could spy on me to set up a robbery" is exceedingly low on my list since it just recreates a pattern that doesn't involve a computer.