I am a firm believer in Pareto's power law. Power concentrates into fewer hands. Not a firm believer in Darwin's survival of the fittest in its entirety. The entire linear evolution theory has a lot of holes in it. The point is, as technology evolves, mankind becomes more detached from nature and humanity. Its an easy thing to operate a drone from centcom that wipes out a congregation of people in Yemen without feeling any pain. There is not reason to believe the man will evolve into a more prudent species that avoids self extinction.