I guess you'd have to know some of the real world historical background to get the full picture.
During that time the CIA used drug money, specifically money made off of coke and crack, to fund 3rd party cold wars.
The catch is any paper trail could not connect back to the US gov. so operatives used the cartels and they trickled down to hustlas onnthe corners. Same thing with the weapons which is why he made a big deal about filing off serial #s. There's a Tom Cruise movie coming out covering this again.
With this in mind, since I'm very aware of it, I too was not impressed by the pilot and am not feeling that storyline. I'm barely feeling the Cartel members story so far as well.