I used to believe that speed-cameras were "unsportsmanlike" until I a) grew up a little, and b) visited a country where they were in extensive use and driving felt safer.
Speed cameras massively decrease the need for traffic-stops, which is a huge win for both safety and potential profiling/discrimination. Lowering speeds can decrease the consequences of a crash and more-uniform low-cost enforcement can allow law-enforcement to focus limited human resources on responding to calls that actually require a human.
I'm a big fan of speed cameras now, especially those that measure average speed by photographing cars at the ends of a long road segment.