I remember having a very bright GF in my younger days who would habitually go on a mission to rub people the wrong way and then wonder why Everybody was against her.
She was eventually diagnosed with bipolar disorder. After that her mission was to prove she knew more than her "idiot" therapists.
Also just got out of a 1 year relationship with a lady with a 175 IQ (so she claims) who even describes herself as a highly neurotic genius.
She can get any high paying consulting nerd job she wants but consistently gets fired within 6 months.
Ask her why and she'll tell you it's not because she comes across as an extremely annoying and condescending Know-it-all to everyone else on the project team but because Everybody else is insecure being much dumber than her.
Both women had to be right at ALL times and both were the common denominator in terms of not getting along with everyone else. Both considered themselves to be Very nice people. In fact they were on the surface but once you spent any time around them the shit was guaranteed to hit the fan.
We all have our personality issues but the key is to recognize and acknowledge them with a bit of humor. This allows us to laugh at ourselves and ultimately adapt and succeed in any social environment.
There is one question that neither would answer directly. What or who is the Common Denominator in every single case?
Of course you could always just prove my observation to be wrong. I have no problem with that. I am wrong often.