The "great" insight here should be that anything normal can also be mapped as 80/20 and vice-versa. How you decide to map it is more of a political choice, or maybe an emotional one, based on where you fall on any given economic or social curve.

The medium, in other words, is the message. Every one of these things can be plotted on a bell curve if you frame it differently:

>> A handful of cities inhabit most of the world population;

Change to distribution of land per person on earth

>>majority of revenue for organizations comes from a handful of products;

Change to products bought per consumer, or revenue as a whole

>>a handful of nations win most of the gold medals at the Olympics;

Change to average gold medals per nation

All the 80/20 does in the above cases is lop off the bottom end of the curve.