I think there is a reasonable argument that it should be proportional to finance. Let's say two people both get speeding tickets, one of whom is making $10 an h

I think there is a reasonable argument that it should be proportional to finance. Let's say two people both get speeding tickets, one of whom is making $10 an hour the other makes $100 an hour. There is an argument that you should fine them based on their income as a proportional punishment, otherwise the fine may be excessive for the person with a small income, but negligible and not a deterrant for a person with a large income.