The efficacy of speed cameras depends on the socioeconomics of the area.
The "car culture" lunatic drivers I've met in the Baltimore / DC area just make a hobby of fighting tickets. They have lawyers they regularly work with and somehow always make it out with their license intact.
The point I was trying to make is that, after a threshold is reached, one would reasonably assume that these individuals would have their licenses revoked or, at least, be forced to drive in an automobile factory-locked to not be able to travel faster than e.g., 70mph.
The lawyers involved don't stop these individuals from having to pay fines. They can afford the fines and the lawyers.
The lawyers are there to keep the licenses intact. "But Mr. X needs his license in order to get to work at his important job for Corporation Y!"
Financial deterrents don't work well in places with high median incomes like Maryland.
The "car culture" lunatic drivers I've met in the Baltimore / DC area just make a hobby of fighting tickets. They have lawyers they regularly work with and somehow always make it out with their license intact.