Not necessarily.
Even in real life, there have been cases of humans who have highly developed memory for example and intelligence... though the latter probably cannot be measured so callously as people like to think because 'intelligence' varies from person to person and can be defined in a variety of ways.
Just how smart a person is can depend from a variety of information they have and the ability to 'connect' the said info in their brains along with other abilities - but like I said, it is highly subjective.
The case with using players for solving complex issues is a simple case that can demonstrate how academically educated individuals or 'accredited' scientists don't always know best.
I've met extremely intelligent individuals who can put so called 'scientists' to shame, but they either chose not to be a part of those circles, or are never given a chance to show their 'talents' (and even if they did, one has to remember that challenging pre-established notions is not always accepted - in fact, in most cases, they are laughed off).