Billionaires, evidently. Why else would they deserve a million times what you make in your entire lifetime, weren't for the fact they're a million times more productive than you? In fact, if one were to die tomorrow that'd be like the loss to the world of a million of you, whereas were you to do the same, that'd be a loss of only one of you. This is also why you can be downsized without that impacting anything important, while downsizing a single billionaire would be a global tragedy.

Or at least, that's the logical consequence of that line of reasoning. If that's incorrect, where's the error in the reasoning?