The last I heard, compliance with the speed limit on SM sections is actually pretty good, much better than on sections with no cameras. So there aren't all that many lucky winners of 3 points. The idea is not to generate money but to ensure compliance with the limit. Set your cruise control and laugh at the Audi/BMW mongs who whizz past you.It struck me as stupidity at the time. The parallel would be removing the emergency exits on an airliner, or the lifeboats on a ship.
This is about expanding capacity on the cheap and ramping up the fines handed out from the speed cameras. Nothing else.