If you subscribe the general worldview that human well-being is an important goal for society and believe that we have progressed so much in the last few centur

If you subscribe the general worldview that human well-being is an important goal for society and believe that we have progressed so much in the last few centuries because of scientific knowledge and technological inventions, then it becomes clear that the qualities described in this post, intelligence and the ability to come up with useful new ideas, are useful for society. In my reading, PG did not claim that these are the most important things for society.