This is what I believe, but this will probably descend into the usual anti rich bashing farce.
For what it's worth I think the punishment is too extravagant, but I believe you should be fined a percentage of your wage for instance. It's not about punishing the rich for their success, it's about an using an acceptable deterrant to punish idiots.
It's a punishment at the end of the day, and how much the law affects you shouldn't be scalable due to your wealth.
But the law is supposed to be there to correct harm, not to punish. The actual level of harm caused (or risk increase caused) is completely independent of income, and therefore income should not be considered when determining punishment. This works both ways, the poor should not receive reduced fines because they are poor, and the rich should not receive increased fines just because they are rich. The fine should be the same for the same crime.
Thats fair enough, but a seperate issue.
Not really where speeding laws are concerned, the enforcement of speeding laws, in both the UK and Sweden, is completely independent of any actual benefit or need.