Reincarnation?
I think that nature makes use of a kind of random generator! In the stone age the groups of Homo Sapiens were very small. If intuitive parents had only intuitive children e.g. it might happen that there are only intuitive people after some generations and the group woul perish. A kind of random generator seems to be necessary.
It is interesting that the type distribution probably worked well in the stone age but is a big problem of today. In the stone age more sensory than intuitive people were required, of course. Today in the information age we would need more intuitive people - but there are still more sensory people. Evolution works slowly...