That'd probably - possibly - be true in a normal society, that notoriety adds rather than subtracts from market value. But in this one? A company or product that manages to fall under the eye of sauron is one we... support?
Could be, I suppose. One of major mistakes in marketing is to imagine that "the market" is all people. "The market" for a product or service is always and only those people willing, interested, and able with respect to that product or service. Are there people in Beijing for whom offending mordor is attractive in a salad?
Well, people are people and reasons for purchase are many, so maybe. Which I suppose is why the agents of mordor do so often clash with underdressed men.