I've always said , we're all intelligent in different ways , I mean Einstein would've  never been able to do what Maradona did, or Jim Carrey what Phil Evey does, there's always going to be something the other one can't do, and those details defy intelligence classification. There is also a very important factor , how about testing people under the worse dangerous scenarios, trust me what appear to be dumb people can survive better than geniuses in splits of seconds.