Land reform in Zimbabwe began after the signing of the Lancaster House Agreement in 1979 in an effort to more equitably distribute land between ... blacks and the minority-whites who ruled Zimbabwe from 1923 to 1979.
The results of the post-2000 land reform have been disastrous for the economy of Zimbabwe. Prior to land redistribution, land-owning farmers, mostly white, had large tracts of land and utilized economies of scale to raise capital, borrow money when necessary, and purchase modern mechanised farm equipment to increase productivity on their land. The reforms broke this land into smaller tracts (thereby destroying the economies of scale) and gave it to former black farmworkers and peasants
Precisely that, they're outliers. There's fully grown human beings that weigh 60lbs and ones that weigh almost 1000, it's not normal it just exists because there's 6 billion of us on the planet.
There's hundreds of countries, so obviously not every single one will follow due to statistics.
the inadequacy and bias of the IQ system in measuring and representing intelligence
Why do you believe there is inadequacy and bias in mental ability testing (the IQ system, as you put it)? Have you read this Citation Classic on the subject?:
http://en.wikipedia.org/wiki/National_IQ#National_IQ_and_QHC...