Aerial survey aircraft don't fly over no-fly zones but you could equally charter a chopper to fly over someone else's property and take pictures to your heart's content. If you found someone sunbathing topless, you're not likely to post the image online. Even if you did, it would not merit much attention, but the first discovery of a topless sunbaker on Google Earth made world news. There doesn't seem to be much difference, but Google Earth/Maps/Street View strike terror into some people because a lot of major roads and streets are visible.