eg: A beautiful person will have much more options in dating, while an ugly person will not, or have no options at all. I know, it is unfair, but there is a clear case that humans have different worth in a society, and it depends on their abilities. A top scorer (aka Ronaldo, Messi, or Zlatan) in soccer, will have much higher worth in the market then a mediocre one. Their output is directly measurable, and yes, they have much much different value and they are worth more than an average player. Their presence in a team creates more ticket sales and more viewership into the sport. So, they are clearly worth more to that sport at least. If you think sports are valuable at all to a society, then they are probably worth more to the society as well. If you think sports are useless, then they are probably noise. But it seems that our society values sports and performance.
As I said, IQ is not the only one. Beauty, physical strength, height, prowess, performance in arts, acting ability, creativity are other ones. Yes, a sub-average IQ person, that happens to be a great athlete will do well. So, a person with high IQ, but sub-average athletic ability, or beauty.
The author mentions that it is 'unfair' that companies select their candidates by their IQ, while it is clear case that companies are simply acting on their self interest (IQ is highly co-related to output in today's information age).
And, while I agree we should do more to improve early childhood education, and honestly start at even pre-natal care, to make sure that we do whatever we can to raise IQ.
But I don't agree with his recommendation to resist automation at any cost, and not to value IQ at all. History has shown that societies that did resist progress, the average person suffered for it, (feudal Japan, Russia, or China in the 19th century, are examples where centuries of backwards economic values, and resisting to automation resulted in much poorer societies overall).