In the end, it's each individual's prerogative to mess up their lives if that's what they want to do. Some do it with drugs, some with alcohol, some with overeating and some with self- loathing.
Far worse than these are the ones who arrogate to themselves the right to mess up other peoples lives- with bullets, fast cars, hate, physical or sexual abuse, abuse of power, bullying and lying. Of course, there is sometimes an overlap between the two.
Lets sort out the second lot first, Doherty is rich enough to fund his own tratment. He can pop himself up to cloud level, for all I care - as long as he's chauffeur driven.