To use the money for driver education, speed cameras, and the like is appropriate. In other words the fines are used to stamp out the offence. When people don’t speed you don’t need equipment or the fines.

The moment the fines are considered a significant part of general revenue, they become a hazard. The cash attracts freebooter cops, lackey prosecutors, corrupt judges, and politicians that are in it for the graft. We want to get rid the Ferguson mob and its ilk, not not replicate it in New York and other places