I don't think so. In university some pharmacy or chemistry guys could scrounge pure ethanol. (98 or 99%.) Screwdrives with that were nasty.
If that was really the case then people who were given morphine drips in hospitals would have high rates of addiction after leaving the hospital. But this doesn't happen. People who get addicted to Opioids either are in constant, on-going pain (due to injury or other reason) or are purely recreational users who are likely responding to external stresses. Basically, the entire model of addiction you are using is wrong and the numbers on addiction bear this out quite clearly. And before you tell me about "soldier's sickness" after the Civil war, remember that most of those soldiers had on-going, serious pain management issues (due to missing limbs and poor quality surgery at the time). This is why our "war on drugs" has been such a monumental failure, our basic model of addiction is wrong and leads you to believe non-sense (like your post). Heroin is certainly addictive but addiction is a response to stress and pain, not a moral failing or a bio-chemical crutch. A better model is provided by the Rat Park research. Policy using this model as a basis will be much more effective if for no other reason than its a far more accurate model of how humans behave than the practically medieval way we deal with addiction right now.