This, taken literally, is clearly false (the wealthy do in fact buy things and pay for services / employees).
So, as you don't mean it literally, what do you mean?
You save on buying in bulk and using better made products with longer lifespans, afford better education that makes you more difficult to fool and gets you a higher paying job, make more returns by investing more money, conserve willpower for important decisions by not having to choose between soap and bread at the store.
>> The economy is not like an ecosystem since there is no reciprocation If mutual beneficial trade is not reciprocation, then I don't know what is. Reciprocity is more a societal thing than an economic one. I would say historically there have always been reciprocal societies. Smaller ones tend to be more reciprocal than larger ones since their survival depends on it.
>> Money flows in one direction only, toward the top This is by design i.e intervention. It need not be so. And there is nothing preventing a species from colonizing an habitat till it exhausts the resources and it's own ultimate demise.
Monopolies, by and large are formed (and broken) by government aid/intervention. Post the industrial revolution, the government has become involved in more and more areas of the economy, so much so that now it has become the chief driver, to stimulate growth, reduce inflation, boost employment/industries. Given the complexity of interactions in the real world, I don't understand how someone can believe they can understand everything and control it.
Regarding your other comment, I agree, the notion of exponential growth is ridiculous and runs into real world limits.
It's possible - just it represents a significant amount of work that needs to be invested in the product before it can see the light of day (compared to other domains where there's less needed to invest).
So natural monopolies and economies of scale are caused by governments?
