Practically speaking, the 1st thing to do is take down the most “public” and blatant violators of the law. As long as a vigorous, sustained, and consistent effort is made to do so, those accused cannot cry “unfair”, just because not all are caught.
This is somewhat analogous to catching speeders: The Highway Patrol cannot arrest everyone speeding, but they can make a public show of catching the worst offenders, which helps to hold down overall speeds, if not the number of offenders. If your officers and other information indicates “insufficient effect”, then ramp up enforcement.
The argument “but officer, what about that guy who passed me 5 miles back?” holds no water.
Insofar as political corruption goes, I think the efforts against it in IL need to be at least quadrupled.
But he was the Governor! Not some speeder. To this day, I see his name, in my minds eye, on those signs announcing the toll area, as it used to be there in fact.
You see? On what authority are you speaking about “taking down” blatant violators, like for example the duly elected Governor of Illinois. It’s like Russia.