Ehhh in the case of the Sovereign wealth fund (SWF) that owns City they got rich by right of birth. Their king and princes keep all the wealth that derives to the country via the fluke of their oil and gas assets. That money is invested in the SWF.
They got rich by right of birth and the fluke of their country having natural resources that were deemed valuable, and exploitable, at the time.
They got rich by right of birth and the fluke of their country having natural resources that were deemed valuable, and exploitable, at the time.