This is falling into pop psychology. Psychology is like linguistics - you can describe it using a rough model, but should keep in mind that it's all just an abs

This is falling into pop psychology. Psychology is like linguistics - you can describe it using a rough model, but should keep in mind that it's all just an abstraction. Actually, there's some value in telling people that narrow-minded prescriptive grammars are "correct" - that encourages people to write the same way. Encouraging people to think of every little deviation as a disorder can do much more harm than good. Queue an onslaught of self-diagnosed "Hare psychopaths" who will try to act out the role. Yes, there are probably a few real psychopaths out there in the extremes. But that's no reason to encourage people with a mild case of "Asshole Personality Disorder" to start telling themselves they are merciless machines who are capable of anything.