Well, these busts are all for show. Just like the rat catchers, wrestlers and roach hunters, some are always left for future employment.
Without drugs, arms smuggling and the trade in human flesh the profit rate would fall catastrophically, cos these areas of investment have such a high profit rate that (equalized out) it keeps the general rate of profit higher than it would be otherwise.
That's why the opium poppy is bigger than ever in Afghanistan. Coca in Colombia, etc. The white slave trade as it used to be known is globalizing with the speed of a bushfire, and weapons are accumulating everywhere. Wait till China and India get arming the citizens...
Booze and coffin nails are also good earners and bringers of death, but too deeply rooted in our "culture" to be banned - too dangerous, ie too big a threat to the state monopoly of violence and terror, as Prohibition showed back during the (oh dear) Great Depression...
Unemployment is good for profits too - keeps wages low. The next-best thing to war for profits, though, is the "peaceful" destruction of capital going on at the moment.
But that's probably another story.
(Paris, cos for the likes of us, she's another story altogether...)