Maybe it's a hint the this model of capitalism is only good for increasing the wealth of societies within a certain range of development. What happens when emer

Maybe it's a hint the this model of capitalism is only good for increasing the wealth of societies within a certain range of development. What happens when emerging markets become developed middleclass markets - do they too stagnate, or does the whole economy decline except for the top 0.1% at that point? Is that an acceptable system?