The answer could probably be c
He learned of African gold when he served as a soldier.
True.
"Hughes patented the technology in 1909 and, with partner Walter Sharp, formed the Houston-based Sharp-Hughes Tool Company to manufacture the bit. After Sharp died in 1912, Hughes bought his interest in the company. When he in turn passed away in 1924, Howard Jr., an only child whose mother had died two years earlier, inherited the thriving company and became a millionaire."
This is not merely a hypothetical but a reality.
Take Rwanda.
Rwanda was drawn without an understanding of the ethnic make up.
And, in effect, a minority population was given control over a majority population.
This is problematic as it creates tensions that should not exist.
The argument that Carnegie makes about the uses to to which the great fortunes of industrialists should be devoted is that he argued that the wealthy must live modestly and make use of their fortunes for the elevation of all civilization.