To avoid confusion, we must distinguish between mental and physical powerlessness...
To put it simply, we are physically powerless once we start drinking or using drugs and they enter our system. Addicts and alcoholics are physically powerless for LIFE and will experience the phenomenon of craving (a physical event) every time we drink or use. There is no getting around our physical powerlessness. You can turn a non-addict into an addict, but there is no turning an addict back into a non-addict, physically speaking. Recovery groups who preach the idea of future moderate use for true addicts and alcoholics are completely insane.
Active addicts and alcoholics, as well as sober yet untreated addicts and alcoholics, are mentally powerless until they have regained the power of choice, i.e. their willpower. When we get sober, we continue to suffer from what's known as the "mental obsession", which refers to thoughts or ideas (about drinking or using) that do not respond to ration or reason. In other words, the addicted mind is insane, and remains that way until it is restored through consistent right action and enough spiritual growth to induce a fundamental psychic change whereby guiding principles, beliefs, attitudes and behaviors that have haunted and driven us for all of these years are suddenly cast aside and an entirely new set of principles and motivation is adopted.
The point is that we die physically powerless. Our bodies are forever broken once we break them. We call this the "allergy" to drugs and alcohol, and by the way, it crosses all lines. There is no, I'm just an alcoholic but I'm not addicted to my wife's benzos or I just love dope but I'm def not a cocaine addict yo... I could do cocaine all day long, son. Oh, okay.
So we can never safely use again, and guess what? That's a GOOD thing. Knowing we are physically powerless keeps us sober. Also, why would we need to drink or use moderately? Are you missing out on something? If we enlarge our spiritual lives and begin to experience the magic of this new way of life, who gives a shit about missing out on recreational drinking at some dinner party? Personally, I'd much rather have the life I have now and the incredible journey I'm on now more than sailing through the world as some mundane zombie.
So while physical powerlessness is a permanent condition, mental powerlessness is (potentially) but a temporary condition. That is, one can go from being mentally powerless to regaining mental power (or willpower) over drugs and alcohol. And once that is achieved and maintained, the body of an addict is irrelevant. This is why addressing the physical aspect of addiction is such a useless and ridiculous endeavor, but hey, do whatever you want, I guess.