People who have been damaged by random acts of crime may very well find more peace-of-mind sacrificing a bit of privacy to not have those acts repeated on their persons.
Should we install security cameras in public toilets? It would certainly reduce crimes such as assaults that occur in public toilets. There would be very little impact on our personal security.
Privacy is an fundamental aspect of our quality of life. Privacy is not of secondary importance to security but exists alongside it. If that were not so, then there are plenty of places we could be putting surveillance cameras in order to improve our security.
However, people install security cameras in their own homes all the time---some of which are even wired to cloud services or outside security monitoring agencies.
I agree that privacy exists alongside security. Where the balance-point is best placed varies from person to person. In public spaces not scoped for private activities (such as the streets of a city), the balance point has to be agreed upon by the citizenry in general and is almost certainly somewhere past both "toilet stall" and "personal residence" in terms of collective value for surveillance.
After all, we already put up security cameras on street corners.
Until we have 100% transparency into situations where executives/operatives/etc are meeting behind closed doors to screw over thousands if not millions of people then they should not be allowed to have any of those privileges on us.
That end is peace-of-mind.
People who have been damaged by random acts of crime may very well find more peace-of-mind sacrificing a bit of privacy to not have those acts repeated on their persons.