Earlier quoted context omitted.
Money doesn't allow people to live, shelter, food, water and friends are what allows people to live. Do you think that you plant dollar bills in the ground and they grow food?
You can't grow enough food for everyone, house everyone's friends, and keep them alive without money. You could maybe do one of those without money, but at the expense of the other two. The money is a critical part of keeping track of how much of each thing you can do without running out of resources. There are too many resources in the world to keep track of them all in your head.
It's an imperfect analogy, but I think dollars are more like inches - useful to measure and compare things, and subject to redefinition at the whims of power. (Imagine a carpenter telling you he can't finish building your bookcase because he's "run out of inches." They are not the things they measure.)