even if a link maybe found, it could be very indirect;

for example:

Inteligence = good job
Good job = monney
monney = more cd's
more cd's = listen to more music

Unless someone can come up with a plausible explanation for why there would be causal conection then it should be treated as merely a meaningless co-relation.

like the negative co-relation between the lack of pirates, ninjas and cavemen,  and the increasing global warming.

^ its a nonsense co-relation, however, there is a causal relationship between the lack of ninja's and golbal population.

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The truth is what money can be made from a lie.