I know one INTJ well in real life and she's passionate about her interests (gardening, sci fi and her family), but most of all, she's probably the smartest woman I know. And she's not just intelligent, she knows and thinks about many things - history, math, language, child psychology. Yet she modestly says "I don't understand mortgages."
I met another woman recently at a wedding who reminds me of her - that same intelligent demeanor, combined with poise and modesty. She was wearing a dark skirt and chunky sweater instead of a fancy blouse and dress pants. She could have been my friend's twin, right down to the eyeglasses.
On this forum I've gotten to know INTJMom pretty well, and she has some very nice INTJ qualities: intelligence, modesty and helpfulness. She's a person who really thinks about things, but she isn't afraid to say when she doesn't know something.