I think the point is not for the police departments to get Teh Phat Lootz, but to equalize the pain of violating the rules. The guy in the article makes €6.5 million a year, almost €18000 a day--do you think he gives a single shit about a €50 fine? €1000?
We sort of cover this in the US with points; you can't just drive recklessly and pay for it out of petty cash forever because you'll lose your license. But the day fine concept seems like a decent way to instill the same kind of aversion in everyone, fairly. Points are ephemeral but your money is obvious.