There's a difference between being in an emergency situation where ignoring your own safety is likely to get you killed (and thus unable to help others) and being in a stable situation where you have some reasonable margin of error.
It's entirely reasonable to prioritize propping up an ally over propping up yourself if your own position is reasonably secure. And while obviously the military situation is not 'peace' and the Commonwealth's economy is not perfect, there's nothing so badly on fire that we need to be in crisis "gotta make sure I survive, gotta take everything for myself" mode.
Thats the thing.
We arent in a stable/secure situation. At least, thats my assessment of current events.
A lot of the voters for Terminus Favor seem to be voting on the assumption that we are stable.
We obviously arent going to collapse and die tomorrow, but we are operating on a very fine line with little room for error.
Which is why my flabber is repeatedly gasted by arguments to pass up the money that would help with stabilizing the economic part of the nationstate equation.
I wouldn't be so sure. Some of those Terminus colonies may be as old as ours, and have had just as much time to grow. Virmire was a bit special in terms of just how much effort the Citadel put into colonizing it, but not necessarily unique.
I could be wrong, but there it is.
Doubt it. These werent settlement colonies, they were extraction colonies.
Old maybe, but the infrastructure to support that growth would have been lacking. We know how much and how long it cost us to provide nationstate support until they became stable, and none of those were getting that AFAWK.
Virmire was a settlement colony on a garden world, funded by the Citadel, so it got a lot of growth that wasnt organic.
Let me do the numbers here.
The Remnant and the Frontier Confederacy are both coming off multi-year Rachni occupation.
With everything that means for population levels when an opponent with orbital superiority parks a ship above your planet.
MIC and the Northern Defense League both explicitly lack huge populations, but control large swathes of territory, and have just been far enough from the front lines to to invest in their militaries uncontested.
The MIC in particular is characterized as not particularly stable, and is one of two nationstates whose leader has a military title.
Omega is predicated on their eezo and their diplomacy. Omega itself can support maybe a couple million in canon?
*checks* 7.8 million.
Korlus has the infrastructure around the eponymous ship dumping planet.
Jondam we dont know much about, and I suspect that if they had that sort of economic mass that a high single digit/ double digit billions population represented, that corporation would be trying to throw its weight around more before we showed up.
We know nothing about the Rim Dominion besides up-jumped military state + junior member of the Cooperatives.
CONCLUSION
The Terminus Alliance, not counting Tamaras Rim or Virmire/Attica, is probably double digit billions.
But I doubt any single nationstate has Virmire's population.
POST-SCRIPT
Looking at the Mass Effect Wiki, Korlus had 3.8 billion as of the time of canon.
This is roughly 2000 years from now.
For a different set of colony numbers?
Ilium had 85 million after 500 years of colonization.
Esan, an asari colony annexed by the Hegemony and renamed Lorek has 4.7 million after 400 years