I think there are two types of 'geniuses'. One type is 'people geniuses'. These are people like Steve Jobs, Ronald Reagan, Sarah Palin, Billy Mays, etc. These people are geniuses in the way they were able to understand people and get the to do things (vote for them, buy their products). The other type of genius are the 'systems genius'. These are people like Tesla, Einstein, Newton, etc. The first group are not renown for their intelligence, the second group are not renown for their people skills.