just in general, the Day-Fine system (which you've probably heard of, a few countries have it) seems like a common-sense reform. its principle should probably be how we approach most fines, actually, because having them basically be flat makes... very little sense if you actually think about it:
Under Finland’s “Day-Fine” system, an individual's income is a key determinant in the size of the fine they are subsequently issued with by law enforcement. Finland was the first Nordic nation to introduce the income-based “Day Fine” system in 1921, and several European nations have followed suit since.
Further, under the Finnish “Day-Fine” system, the more a driver is over a speed limit, the higher the number “day fines” received.