“In my own experience, really smart people have no need whatsoever to prove to anyone else how smart they are. The world either recognizes that fact or not, and they don’t particularly care one way or the other. If they happen to meet another very smart person, then they may have found a new friend. Everyone else falls into one of two categories: teachable and non-teachable. Teachable people are deserving of their attention; non-teachable ones are not. “
That is the general view that I take when meeting new people. I will add that I try to learn as much as possible from others whom I find to possess wisdom.
Intelligence is an overrated characteristic — mainly because it has a ready metric that can be applied to it since the IQ and the standardized tests were developed. There is no ready metric for energy level, emotional stability, empathy, and like matters that will have equal or greater impacts on most outcomes in life.
And your last sentence above, mentioning “wisdom” is the ultimate “unmeasurable.” Does this person apply the important things in their life? Do they understand what is important? Do they have the self-discipline to do what they know is right?