Often times it seems like the “soft diagnosis” of a condition can be used to hedge against less-than-desirable personality traits if the person is held in high enough esteem. If they aren’t held in popular regard to some extent or if there’s other factors that can be used to explain their behavior (e.g. the stereotypical “German coldness” or whatever) then they don’t get those benefits. Characteristics like their political views may also negatively affect the likelihood of this “psychiatric hedging”.
At what point do idiosyncrasies become subject to pathology.