People are physically enslaved by opiates. Once people are addicted to opiates they lose the ability to choose. Through overwhelming and superhuman effort the best thing they can become post opiate addiction is a table that's missing a leg. It can sort of perform as a table if it doesn't get pushed slightly. If it gets pushed slightly it will fall over.
I understand what you're getting at and those people certainly exist but I think it's really important to differentiate between a society destroying disease and people that like drugs and don't like paying rent.