This is very reminiscent of EVE Online's "I mined it so it's free" fallacy. In that, the player is mining minerals which they then use to manufacture a product

This is very reminiscent of EVE Online's "I mined it so it's free" fallacy. In that, the player is mining minerals which they then use to manufacture a product in order to sell it, but they often sell the product for less than they would have by selling the raw minerals or lose out in opportunity cost because manufacturing yields a higher $/t, and once you scale up you can't supply your own minerals anymore.