Very impressive, Golan 2072! You have put into words many of the concepts that are the underlying assumptions in my Terran Sphere. Allow me to share a few highlights. Forgive the apparently incongruous items present, that is because the story I lifted it from is work in process...
Note: the initial five year Scout exploration mission began in 2089
(2182)
With relatively limited interstellar transportation capabilities, weeks of delay in transit time for any interstellar communications, and a downright insistence on independence that the Scouts retained, for the moment, things are chaotic at best. What with the rather formless Exodus, and now a wide open free trade zone for the Merchants, how can one plan for the future?
Terra and her core allies are still swimming in paper wealth. It is not as substantial as it was in the Exodus days, since a great deal of commercial activity is now conducted beyond their easy reach. Still the income is considerable, coming mostly from shipyard refurbishment and new construction, Merchant House port of registry fees and Scout information brokerage taxes.
Terra continues to push forward on G-space drive research. Multiple research labs deep in the asteroid belt do so, along with factories harvesting rich nickel-iron chunks. Terra and Tau Ceti still represent eighty percent of new ship construction. Some outlying merchants are constructing their own craft and flying flags of convenience, but they are particularly vulnerable to pirates.
There is not a lot to stay for. Polluted areas have been cleaned, lands reclaimed, O'Neills in nearby orbit supplying fresh food. Terra has almost become a gigantic park. Who lives in the park? Human labor is still available, at premium prices. With any group of potential malcontents able to sign on with a House, the military or freelance, and go offworld as laborers, mercenaries, scouts or scientists, there are very few idle bodies on Terra anymore.
Anything involving human activity demanded justification for the expense. At least on Terra, union membership and influence reigned supreme in a second Golden Age. Their power was considerable in the Core. Though spotty, it was present elsewhere in the Sphere. There were a few groups who kept their home offices on Terra and managed to expand to the stars.
Merchant hubs like Magellan Orbital saw firsthand the usefulness of a skilled group of craftsmen. Ironworkers, Teamsters and Operating Engineers proved useful on worlds with hostile environments. Also, there were Shipwrights, Boilermakers and the very famous Interstellar Brotherhood of Electrical Workers. They proved over and over again that their expense was a wise purchase, for with it came quality.