explain "a man apart" ending to me.

for the entire length of the movie it was like there was this “other” cartel, and then in the end it kinda turned out to be one and the same ? but that absolutely makes no sense.

please explain.

I didn’t get it either. The plot wasn’t the reason people saw it anyway. (no offense to vasyachkin)

why did they see it, if not a secret ?

I saw the film last week and as far as I could make out there was only the one cartel and the fella who was in jail was El Diablo all along. I can’t be too sure as I was somewhat distracted by the sight of Vin Diesel in a BPV <swoons>