Not sure if this is the characteristic you're getting at, but a fair proportion of addicts of any kind seem to have hardwired impaired emotional processing, separate from being addicts: google "alexithymia" for more information-- it's more or less the opposite of emotional intelligence. This is my ex husband in a nutshell. But that's about emotional ability only. (Reading up on this personality trait did help me view him with more sympathy and less rage.)
And then there's the idea that alcoholics stop maturing when they start drinking. My former husband is bizarrely naive about a lot of things in a way that most of us outgrow somewhere between 10-20. It has nothing to do with whether he's drunk or not-- the difference between good and bad ideas, and what constitutes the logical consequences of one's choices, seems to escape him. It's not that he doesn't care, he just can't see what you and I would say is obvious.
Good luck!