Pareto explains the curve, but the monetary rewards are linear to where you are on that curve. Perhaps a small example will clarify.

Pareto Curve (more or less) of Y values on index X: [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,3,10,50,500,7000,9000000]

Index 30 is "off the chart"

Now revenue: $$*index

The correlation is linear (basically). The top youtuber who is a kid who reviews toys, makes the majority of his 22mil from ads, same as you or I would with <100 views per video.