I don't even think that is the best defense because it takes a very passive acceptance to it. On the flip side, if someone steal my bike or assaults me in public, I'd like there to be some accountability which would otherwise never happen (and vice versa). In the past, if a white lady were to accuse a black man of some crime, then it was practically impossible to fight it. With CCTV, you can prove innocence and guilt a lot more conclusively.

"Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say." -Edward Snowden