http://www.lcurve.org/The US population is represented along the length of the football field, arranged in order of income.
Median US family income (the family at the 50 yard line) is ~$40,000 (a stack of $100 bills 1.6 inches high.)
--The family on the 95 yard line earns about $100,000 per year, a stack of $100 bills about 4 inches high.
--At the 99 yard line the income is about $300,000, a stack of $100 bills about a foot high.
--The curve reaches $1 million (a 40 inch high stack of $100 bills) one foot from the goal line.
--From there it keeps going up...it goes up 50 km (~30 miles) on this scale!
http://www.lcurve.org/images/LCurveFlier2003.pdf For a real look at it or see the vid on the site.
There is nothing natural like this in nature like a bell curve unless say a meteor hit earth. Give this to some monkey standing at the one yard line and see if they can actually grasp it. They probably wont get it if they live in a trailer park voting GOP with visions of Gradeur that they might be one of the elite while the elite just laugh and spit in their faces.