Value of brain power

Market force also affect price of any thing including intellectual ability. When high IQ people are rare, high IQ people get highly paid and valuated. When tons of people with high IQ who can do rocket engineering, high IQ people will not get highly rewarded. However, a low IQ star or athlete might get way higher pay than smart ones. I do not deny g a valuable asset. But even a valuable asset is subject to market force of supply and demand.

In China, smart people might not be so valuable compared to some really low IQ countries. That explained Chinese willing to emmigrate to even poorer countries, where a poor Chinese landless farmer can strike rich.