Earlier quoted context omitted.
The body as you have described it is one node (an organization in my example) in the wider network. For that node to function it needs to have all of its components working in unison but if the node fails other nodes can adapt and the system keeps on chugging.
This layering of central and distributed seems common on all levels. If you go up from your example, you have an ecosystem that needs to work in unison. But if it fails, there are always other planets...
Yes this occurred to me too. Very interesting. At what layer is the economy at naturally?