In correlation to this, I realized that the old saying money is power was not true. Power is a time-dependent value while money is not. To make a correct analogy, money would have to be matched with energy.
But I thought to myself, why can't we make a unit of money over time? So I propose the salarant. It is the equivalent of one dollar per hour. I don't know if it would exactly fall under the SI units (they'd probably use Euros), but I think we can make it work. Money per hour is power.