Comment by SoftTalker

Some people are just born into it. Mafia families, etc. There were some very smart people in the American mob, running scams that were immensely profitable. Eventually they get caught though, and with the ease and pervasivness of electronic surveillance today, it's pretty much impossible to do it anymre at least if you're anywhere where the authorities care about it (edit to add: and aren't in on it).