Horns of a dilemma
The difference between Street View and Closed Circuit TV is that anyone can see the photos google take of a public place but in CCTV only the owners of the CCTV get to see.
It is a public place so what you can see is what you can photograph.
When in public we do what is acceptable in public so there should be no problem with a photograph of it.
However a photograph has a power beyond that of what one person can see. A photograph or video is a record which can be viewed by millions of people who weren't on the street at the time. It can also be looked at live or historically by machine and in ways not yet invented.
Simple phototography and TV has radically changed in a way which changes our lives. A camera is now a far more powerful tool than ever before. Googles street photography will be a powerful tool that will be used for good and evil just as google maps and google earth are.
Just be glad of the techology in your own hands.