I think this is about 98% of the system,
the only part missing is the source of energy to it all, where it comes from, the Earth, or the Sun, this makes a huge difference to how we need to think about money also, realising it is actually the only mechanism most of us have that transports the 150 or so Joules per second we each need 24/7, but instead of a series of accounts, where it sits statically not doing anything, creating any value, it needs to flow, from source to sink in the same way as the energy from the sun propagtes to all living things that need it on Earth.
When we do this we can also establish a mathematical basis for the negative energy you mentioned, if it comss from Earth, then it was subtracted, therefore is mathematically negative, this sign propagates to all business done using mathematically negative energy - profit, usury, interest, even theft, they are only relevant to, and can only happen in a mathematically negative energy powered world.
I've written much more around the energy side of things, am sure you'll find in my profile.
Meantime, I hope you will see my comment as a compliment rather than anything negative, I am impressed you are not a practicing Systems Engineer but still got 98% of the system :)