There was this other formula.
Power = Work / Time.
Knowledge = Power.
Knowledge = Work / Time.
Time = Money.
Knowledge = Work / Money.
Work / Knowledge = Money.
So, the less you know, the more money you make with the same work. The more you know, the more you work to make the same money.
I guess that explains how Grad students and Post-Docs always seem to work and never seem to have any money.