The idea is that, for the rich, a normal speeding fine isn't much of a disuasion, so they tend to become repeat offenders鈥攗nless the fine really bites hard.
With fines of 2,000+ CHF a day, even the mega-wealthy start to pay attention.
https://www.theguardian.com/world/2010/aug/12/record-speeding-fine-switzerland