The premise of your hypothesis is that resources are zero-sum, when globalization, modern capitalism, and scientific progress have made this moment the greatest for poor people in all of human history. At the same time, the rich have gotten richer.
To answer your specific question, whether rich people living longer is good for poor people -- it would be, because those longer-living rich people aren't just consuming more, they are creating more. In other words, if we aren't losing as many people from cancer, our productivity goes up, and wealth abounds in all areas of human endeavor. If an engineer in Kansas didn't die of cancer, maybe he'll go on to invent a new method of soy cultivation that brings prices down and saves lives in Africa.
I think that to deny that health, life, thriving are good things, one must believe that humans are liabilities instead of assets. But they aren't. Humans aren't sandbags on human achievement, they are a necessary input.
To answer your specific question, whether rich people living longer is good for poor people -- it would be, because those longer-living rich people aren't just consuming more, they are creating more. In other words, if we aren't losing as many people from cancer, our productivity goes up, and wealth abounds in all areas of human endeavor. If an engineer in Kansas didn't die of cancer, maybe he'll go on to invent a new method of soy cultivation that brings prices down and saves lives in Africa.
I think that to deny that health, life, thriving are good things, one must believe that humans are liabilities instead of assets. But they aren't. Humans aren't sandbags on human achievement, they are a necessary input.