Roleplayers inbred?

I just wanted to use the word inbred. So anyway, I read an article this morning about the inborn capacity to do math. I believe this to be the case. Some people just think with and about numbers better than others. Its the same with a 'mechanical sixth sense.' My brother-in-law just intuitively knows how things work. He is actually gifted in that sense (though he often considers it a curse as he has made it his career and everyone and their mother asks him to repair stuff).  Some people are just gifted; with words, making music, giving speeches etc.

So,thinking about RPGers, I wonder what connects them. At one end of the spectrum I have met a navy SEAL who plays rpgs as well as an actuary. There is a heart surgeon and plumber who play locally. Lawyers seem to be well represented as do computer programmers.

Is there a certain inclination with gamers to game? It seems gaming transcends all social and economic strata that there must be another rubric to begin placing gamers within. I have a gut instinct that role playing games specifically reference the seemingly innate 'story teller' in man with varying end goals for the story telling.