Yes, Einstein was in some way different from others. From my point of view, these genetic differences can be explained only by the random combination of genes. I think it can not be explained by any logical way or by genetic science but only as a result of play of nature . The best proof of this idea can be that after all of successes in the field of genetic science, there is still no any remedies that can let to produce smart children. Another example that contradicts a theory of biological determinism, that we do not live by our natural, instinctual, primitive way because we do not live, as primitive animals do in nature.
Civilisation is a subversion of nature.
In a global contest there is a huge amount of examples when people whose parents did not have any money or power, achieved the higher level of power. For example Napoleon, a son of the ordinary people, citizen of Corsica, just with the help of his intellectual power he became the first person in the France. He did not inherit any imperious qualities from his parents, but he manages to become an imperator. We can say that his existence causes the death and starvation of millions people during the wars that he had. History knows an example where it is not innate abilities bring people to the power and control.