What I'm saying (and maybe what you're saying too??) is that there seems to be a very self righteous attitude about growth being essential. That attitude is understandable coming from those at the top, but it's mystifying and, frankly, idiotic coming from those in the middle / bottom who keep giving more than they get. It IS essential for the system we're currently struggling with, but I think it's time to look beyond that system. Which begins with the individual, but at some point if we're going to stop the growth of resource disparity, the world attitude / process needs some change too.
ETA: the reason I eschew the calculators is not that I disagree with personal change, but almost the opposite; because this calculator seems designed to illustrate the idea that personal change is pointless.