Rhodesia is important because it was a normal Western country typical of the century. "More British than the British."

The key to Rhodesia's national identity and success was that it wasn't a land of reprobates and freebooters picking their teeth with Bowie knives

Rather, from the time of the Pioneer Column into the Bush War, it was on the hunt for the best men of England.
With restrictive immigration policies to ensure only those who would be able to assimilate would be allowed.
@AmericanGreyson