Exactly, so using (e.g.) oxycodone recreationally is a bad use, and is thus stigmatized.
If you can find me one junkie who stood on principle and quit cold turkey just because they ran out of money, I will seriously reconsider my position. But I know you can't, because that's not how addiction works.
Yet most of society would hesitate to label having a beer "bad use". Why? Probably because we're used to it, it's not a boogyman.
https://secure.wikimedia.org/wikipedia/en/wiki/Alcohol_withd...
Addiction is bad.
In the case of common substances such as ethanol, society at large is generally pretty good at separating the two concepts, but when the substance becomes somewhat more obscure people freak the shit out for no apparent reason.