Speeding cameras are revenue generating equipment, not safety equipment.
Roads are engineered to be comfortably driven at a certain speed. When legislators put a lower speed limit on these roads it creates a safety hazard and a moral hazard. If you want people to drive slower, you have to modify the road to lower it’s design speed. These modifications (lane narrowing, for example) are a safety tool, not the speeding camera.
I’ve never met anyone who thought these cameras were safety equipment!