I think this is a better way of thinking about it than "greed". The next natural conclusion that follows is that nobody actually knows how to fix this . It may even be an intrinsic attribute of a growing economy; it may literally be impossible to avoid, short of not having a growing economy. Centralized management makes the lockstep-motion problem radically worse, solving the positive feedback problem by nearly elimi…
Some people are against having a growing economy. Obviously the economy cannot grow indefinitely.
There's a lot of growth left to do, and all precluding our growth now will do is make damn sure we never actually build a sustainable society, because it's not possible with our current technology.
We'll worry about how to manage a non-growing economy when we get there. That situation is so unlike the current situation that even speculation has rather limited value.
(See also: http://www.jerf.org/iri/post/2417 , which is too long to put here and not entirely on topic, but is fleshed out a bit more.)