“Without you, I’m nothing.” A version of the latter is frequently uttered by movie stars and athletes to their fans. Absent the individuals who buy tickets to their games and movies, or who watch them on TV, these celebrities would be largely unknown. And they would earn very little money by extension. Celebrities of the film, television and sports variety, along with businesses more broadly, well understand that consumers conduct a daily vote with the fruits of their labor. Without them, they’re nothing in the figurative sense. What’s obvious to those who’ve won customers in the competitive markets is frequently...