Well, former "gifted child" right here. Went to a private school for the gifted, even, but for one year only. It was far too boho and experimental for my father's tastes.
Wouldn't say I was poor per se. I have my beautiful wife and my lovely daughter, but materially we are poor as church mice. Everything is relative, there are children down the street from my wife's house in the Philipines who are really "poor" -- rags only to wear and no shoes, not enough to eat.
On the other hand I am not rich. I am a schoolteacher. What I earn would probably place us in the poverty bracket back in America.
Was I one of society's misfits? Yes, absolutely. For years I was a practicing alcoholic and substance abuser -- over five years clean and sober now.
Intelligence is a dissolving factor, it allows one to see right through all the comfortable lies that make life tolerable for most. It is not always very pleasant, or edifying for that matter.
Yes, intelligence can definitely lead to disruptive personality traits IMO.
In the era I was called "above average" whatever that meant. I have lived a life of my siblings actually resenting the fact I didn't become a lawyer,doctor or whatever. They just couldn't grasp that I never made the connection between 'wealth and success' and happiness.
Completely unconventional life is the only way to explain it. Also a victim of a long period of substance abuse.
Disruptive personality traits? I am sure many have seen it that way.
There are intelligent people who look at the top of society and get ill from what they see and decide to not participate, rather examine the flaws they see in it.