I also have read a great deal about sociopaths and etc...I am fascinated by the humanities esp psychology & sociology.
If I understand correctly most sociopaths have a certain type of controlling nature that makes them less likely to be alcoholic.
It's the clustering of symptoms that define any diagnosis.
Some alcoholics may be but not all are, seems to be the most logical answer.
I wondered for a very long time whether a particularly troubling alcoholic in my life was sociopathic. I think I would tend today to incline more towards borderline personality disorder.
I do think most alcoholics have strong narcisstic traits.