Addend to previous post: High-IQ dysfunction peaks at about IQ 155.
So we actually have at least three extreme personality features in the 155 region which cause major dysfunction regardless of social milieu:
1. High psychoticism
2. High associative horizon
3. Endogenous personality (repurposes the brain for extreme specialization)
A person with these traits is going to be a niche survivor at best in any sort of social system. They tend to sacrifice individual fitness for group fitness.
It’s unclear at present precisely how much these are interrelated (possibly psychoticism causes endogeny?), but they do seem to form a personality triad comparable in strength to the dark tetrad and the OCD/Tic disorder/ADHD triad.
As Heaviside pointed out, there are some dysfunctions that are due to high IQ alone, such as the curse of knowledge (which directly causes social isolation and extreme loneliness). However, such a trait is less dysfunctional than it is merely maladaptive (in the current environment). E.g. a high-IQ person in a society of similarly high-IQ people does not suffer from the curse of knowledge. These problems are also much more easily overcome via simple course corrections, and are less likely to cause a person to consistently lead a highly disordered life.
Edit: Sorry guys, I will start checking spam regularly. Being fair to the filter, you were linking to a penis enlargement product :-P.