My two cents:
Music in FS1 was largely military anthems for science fiction. Those reminded me of Starship troopers, up to the point music track 8 kicked in. It's kind of morale boosting considering Terrans and Vasudans have been at war for over a decade.
By comparison, Wing Commander had a war for 32 years.
I didn't read or watch any so I don't know the timeline, but Starship Troopers is still at war afaik.
Even then, the main characters managed to keep their sanity somehow.
FS2's GTVA seems to me as UN gone wrong and out of control. In detail, it looks like a unity, but whereas the only opinions that matter are the ones at the top; everything else is for show.