The only problem that I have with this line of reasoning is why we ended up being capable of complex thinking processes at all, though I do suppose then that is

The only problem that I have with this line of reasoning is why we ended up being capable of complex thinking processes at all, though I do suppose then that is answered by how rare such an evolutionary line is (with a 'success state' of one). Going back to the second question of mine, is it feasible to see a divergence on the genetic basis over time amongst humans, in that the top academics tend to marry amongst themselves, and we have the strongest meritocratic system available that has been ever known to man? Looking at the Nobel Sperm Bank, there is some evidence of such a divergence already in place.