Imagine there was a certain kind of fuel required for all cars made by a certain manufacturer, and that manufacturer used DRM to restrict which companies could sell fuel to the car. In order to fuel the car, the manufacturer requires 30% of the fueler's revenue to authorize fueling. They provide no services for this fee aside from payment processing. Now imagine that that car company has 50% of the car market, and their only competitor is similar. Does this seem wrong?