An interesting observation about really smart people:

One downfall of being particularly bright is that you are often lonely.  You see and think of stuff that most other people don’t see or understand, so it can be hard to feel a genuine connection with most others.  What is really exciting to you goes right over the heads of most others.  As you get older this gets to be easier to solve by finding your flock, but I think loneliness in the formative years always sticks to you.  

Another downfall is that exceptionally bright people have a high drop-out rate from school, particularly high school. It seems counterintuitive until you spend a day in our public school system.  Bright kids see school as not providing any useful information and find it creates a lot of boring busy work.  On that note, a really great topic for you to explore is the economic impact of the teacher’s union’s stronghold on the American public education system. 

As the parent of children much brighter than myself I'm inclined to agree that it's often hard to understand them, but luckily I haven't seen them exhibit much loneliness. As for the teacher's union, that would be a question worth exploring.