If rich people decide to throw away their TVs every six months and get a new one, this may affect our ability to make sure everyone in the world has a TV withou

If rich people decide to throw away their TVs every six months and get a new one, this may affect our ability to make sure everyone in the world has a TV without beginning to sacrifice other things like bread or clothing. But this analogy sucks because a TV is a luxury purchase and there's no network effect whereby I become safer if everyone in the world has a TV.