Rationalization and denial are key concepts in addiction treatment. To recover, addicts admit they have rationalized their habit (“I use so much less than my friends.”) and denied they have a problem (“I can handle it. It’s not affecting my job.”) Here’s another barrier to recovery from addiction: “I’m too smart for this to become a problem.”
https://latimesblogs.latimes.com/booster_shots/2010/05/addiction-drug-use-doctors.html