Does being intelligent make you more unhappy and isolated?

Reading about really bright minds (Tesla, Nietzsche, Osho etc) it seems they were often pretty lonely, unhappy, and isolated. In no way am I even close to them, but I do tend to seek more of intellectual development than human company. Sometimes, I do wonder if life is more lived with other people, but I quickly regress to my hermit lifestyle and, frankly, find it boring if I have to spend too much time with others.
For those who feel that you’ve done a big part of the journey (individuation or anything else) was it worth it? Is it worth to keep digging for something so intangible in our minds?