I get what you're saying, and I'd agree with you and
@Scarecrow that money would be much better if I was the relative of that guy who died of no fault of his own, running a red light is and ending up killing someone no matter how unfortunate should result in the same punishment for all.
Imagine a week later and the same incident occurs but this time a student struggling to pay bills runs a red light and kills someone, she hasn't got any money so her only option is to spend the next 15 years in prison cos she couldn't afford to pay her way out of her crime, likewise to the relative of that person she killed, what if they wanted a few million instead of knowing the student went to prison? Could get awful messy.