It may seem unfair. However, population increases (fast, actually), so hierarchical structures grow in size, and concentration as well. A CEO of a large compan

It may seem unfair. However, population increases (fast, actually), so hierarchical structures grow in size, and concentration as well. A CEO of a large company in 1980 would be considered a small CEO in 2020. There are more employees everywhere and necessarily more layers of management (and the same goes for the startup/VC ecosystem, and the same goes for democratic structures which require more stringent rule so everyone lives on the same planet). Concentration is more a side-effect of population than any other trend.