In the US, there are around 40k deaths from motor vehicle crashes per year [1]. Who do you think is behind the wheel for most of those?

The point of these cameras is not to "catch" people speeding or running red lights, but to prevent them from doing it in the first place; the idea is that normal law abiding drivers are more likely to drive carefully if they are likely to be fined for their mistakes. Optimizing for the 90% case would mean supporting their rollout.

[1] https://en.wikipedia.org/wiki/Motor_vehicle_fatality_rate_in...