Like other tools, whether they are good or bad depends on the use and your opinion of right and wrong. We agree theft is bad so cameras to catch theft are good. Do we think that salesmen should be able to watch you on the same camera to see which products you are interested in? I think not, but the people at google wouldn't agree. How about politicians tracking your political affiliations so they don't give good jobs to people who support the wrong party?
Camera don't oppress people. People oppress people. The problem is to keep the cameras out of the hands of the oppressors when they don't become oppressors until they have a camera.
