In my experience, gullibility has little to do with innate intelligence and is rather correlated with how much trait neuroticism you have (ie distrust of other

In my experience, gullibility has little to do with innate intelligence and is rather correlated with how much trait neuroticism you have (ie distrust of other people/the world). So in a sense if you were to fire the most gullible employees you might be inadvertently be selecting for neuroticism, which you may not want (unless you're in a very security oriented business where that could be a useful trait)