How often is money made with normal people that are difficult to get along with? If it is the same as normal + easygoing (i.e. rarely), then the defining chara

How often is money made with normal people that are difficult to get along with? If it is the same as normal + easygoing (i.e. rarely), then the defining characteristic would seem to be brilliance (according to the referenced quadrant chart). Perhaps, however, it is more likely that a brilliant entrepreneur is difficult as opposed to easygoing, so the article's point of needing to get along with difficult people makes sense in that aspect. Do VC's & angels in general find that correlation to hold true?