And as a completely different example, what this principle suggests is that nations with a low interest rate environment will generally see a decline in profits corresponding to the lower rate. So for example Japan, a nation where corporate profits became notoriously low after the period of zero interest rates. Or, for example, China, where various subsidies to the cost of capital result in very low and sometimes negative cost of capital to state owned enterprises (SOE). It's these SOEs that end up doing weird things like a metal mining SOE building a replica of an Austrian village for a tourist attraction (https://www.youtube.com/watch?v=hP-7f1XW7jE). How on earth would a mining company do that except for the fact that they have a lot of money lying around due to earning economic rents? They find ways of spending money up until their return is the market return.

This is completely independent of their pricing power or monopolistic status.