Having the ticket price linked to their income would immediately make the game fair. If you earn 10k/h and you need to pay a 100k ticket you will be more careful.

A millionaire in Finland got a 120k€ ticket for speeding a bit over the limit (https://www.theguardian.com/world/2023/jun/06/finnish-busine...). IIRC the CFO of Nokia had a similar experience.