Land is a very thorny subject in Kenya. People have been displaced being rendered landless while others own province sized chunks of land. This whole thing makes it even more hard for the haves and have nots to looks into each others eyes. But mind you this is not a new phenomenon as observed by Italian economist Vilfredo Pareto who in 1906 observed that 80% of the land was owned by 20% of the population. This is more like a force of nature not simply limited to land. He also observed that 20% of the pea pods in his garden contained 80% of the peas.
These are the observations which led to the Pareto principle which states that for many events, roughly 80% of the effects come from 20% of the causes. This principle has found wide-scale usage in many a sector from sales, software engineering and even health and safety.
According to this Wikipedia post, The usage of the principle in software Engineering involves:-
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Microsoft noted that by fixing the top 20% of the most-reported bugs, 80% of the related errors and crashes in a given system would be eliminated. cited here.
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In load testing, it is common practice to estimate that 80% of the traffic occurs during 20% of the time.
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20 percent of the code has 80 percent of the errors