Another extreme situation. Here’s a similar but softer one which seems positive... Airplane tickets to Las Vegas are often much cheaper than tickets to literally anywhere else. That’s because Las Vegas bets that people will be attracted to the cheap tickets and go to Las Vegas, then proceed to spend tons of money at the casinos. My family doesn’t go to these casinos, we just travel to Vegas because we have friends nearby. We’re benefiting but not contributing.
See also: the 1986 meeting of the American Physical Society https://web.archive.org/web/20150913205729/https://physicsbuzz.physicscentral.com/2015/09/one-winning-move.html