There are people whose work you get so awed with to the point of wishing for a chance to peep into their heads to see how their brains operate as they create! When God decides to give mental gifts, sometimes he does it excessively on one head. But also, when He decides not to gift, He deprives so meanly. Unfortunately, often it is not just the deprived that suffer - even those around them.
However, such is the crazy ‘balance’ of society that, I think, it is very rare to be very intelligent and happy at the same time. First, in any society, the very intelligent are the minority. Second, the more intelligent one is, the more annoying society becomes and the higher the chances of not being understood by the rest. And, the more lonely. On the other hand, the average minds and the idiots are compensated with the happiness which comes from the ability to withstand the oversupply of stupidity in society. Indeed, for them, happiness is in what the intelligent often find stupid.