Earlier quoted context omitted.
I'm not sure I agree - if you have the right to observe, listen and record using your meat implements (eyes, ears, brain), then you should have the right to do so using a digital augmentation of the same (cameras, microphones, storage).
And infringing on this imagined-from-first-principles right would cause serious repercussions. No regulation could ever be as beneficial as losing this imagined-from-first-principles right. We must let corporations and the police state that serve them have and use this data.
If you avoid this question, you can justify just about any tyranny so long as it can be argued to be "beneficial" (spoiler alert: this is how the worst atrocities in history have been justified). In other words, the ends don't justify the means.