Simple crimes, not simple criminals. Compare modern organised criminal organisations: they're nowhere near simple, but at the end of the day, the crime itself is simple.
Look into the Yakuza. Each 'family' can consist of many _tens of thousands of individuals_, from the grunts to the cops and judges on the payroll to money launderers and each one is needed to take one of your 'simple crimes' and make it into a business for the family, so by definition they are not simple crimes.
I think you are nit picking to backtrack on what I still hold was a shoot-from-the-hip over-simplification. I think you are not willing to concede the definition of a word beyond your own example despite a rich history of it's use to the contrary.