I find it curious that you see it this way. There was a study done a few years ago on what makes a creative individual.. creative. They found that it was not intelligence, nor brain size that mattered, but the ability to make absolutely random connections in the brain, seemingly unnecessary connections. In that way, creative people would be able to come up with the most absurd ideas, but not necessarily have the ability to judge the viability of them. Maybe be need both, some people who are 'open' and others who are 'closed'.