As I sat through the ads for Lincoln cars and Hilton hotels, I was angry. I was angry at the brands and I was angry at Delta for selling me out. I’d paid full fair (nearly $500) for this flight. The ad revenue they generated wasn’t subsidizing or discounting my purchase price, it wasn’t fixing the broken seats, it wasn’t paying the flight attendant more. It wasn’t improving my experience as a customer at all. In a move all too common with the airlines and elsewhere, these companies were trying to capture more value than they were creating.