This is an interesting statement.
I'm not singling you out, just using your words to express a sentiment that is often seen when speaking/writing of this subject.
The need of the.... whathaveyou (drug, cigarette, alcohol, etc.) non-user, to appologize to the....whathaveyou(drug, cigarette, alcohol, etc.) user.
Does it make you wonder why you feel this way? You being anyone reading this, not anyone person in particular.