Although this example is set in jolly old England … the principle applies today …
Suppose that once a week, ten men go out for beer and the bill for all ten comes to £100. If they paid their bill the way we pay our taxes, it would go something like this..
The first four men (the poorest) would pay nothing. The fifth would pay £1. The sixth would pay £3. The seventh would pay £7. The eighth would pay £12. The ninth would pay £18. And the tenth man (the richest) would pay £59.
So, that’s what they decided to do.
The ten men drank in the bar every week and seemed quite happy with the arrangement until, one day, the owner caused them a little problem.