maybe it's just me but i wouldn't consider mexican drug cartels to be organized crime.they are simply drug traffickers. and in mexico,they operate as terrorist organizations,albeit "narcoterrorism" but i still think they are the textbook definition of terrorists,only without the religious component
I think it's precisely the lack of the religious component that is the key difference. Since they rely on money and not on religious fanaticism, they can buy many allies among politicians and law enforcement and have white-collar front people in the upper society. The methods are terroristic indeed, but if for them it is business and not ideology, I think they are still organized crime. For example, in Italy in the 80s and first 90s, after Toto' Riina took over, the Cosa Nostra used terrorist methods too (first killing judges and policemen who were too good at doing their jobs, killing relatives of underworld rivals, then their own political protectors who were unable to overturn the maxi-trial life sentences), but they are still considered mafia. Even though later they went completely crazy, Giovanni Brusca even wanted to plant poisoned needles in the sand on beaches to mass murder random tourists just to intimidate the public.