" The ones we rarely if ever hear about" is a myth. If ANY organized crime group ever gains some sort of power, you can bet your ass there will be reports on them.
Fact is not a single crime group ever influenced public life as much as the Mafia ever did in their power bases - which are territories where there's law and order as opposed to semi-third world regions.
They're the Mafia, other organized crime group are thugs. Sorta sophisticated thugs, sure, but still thugs.
That last statement is an oxymoron right?
No other crime group in the US influence public life...your missing other groups Joke.