Corporations have had entire armies and countries at their command (not to mention that there is no clear dividing line between corporations and the government). The lives lost due to turf wars waged by drug cartels are not even a drop in the ocean compared to the lives lost in real wars waged for profit.
Let's see. The current Mexican drug war seems to have taken about 50k lives.
The Nicaraguan counter-revolution backed by the CIA took an estimated 29K lives.
The two seem comparable. And the comparison in this case is reasonable because the Mexican war stepped up when mercenaries who had fought in Central America joined the cartels.