One Mafia chap in the UK was making some 114.000 Euros a week in the 1990s from “shark loans” - loans given to people that had a high interest rate. 114.000 a week is around 6 million a year, just so you know.
One pretty well known martial arts fighter was involved in the largest UK cash robbery in history. This happened in 2006. They stole 60 million Euros in cash.