So, given how emphatically certain Avengers make their case for their politics and worldview, it’s probably no surprise that I, personally (mostly) share that worldview. However, the infighting and interpersonal drama that so define the Avengers doesn’t work if only one side gets to consistently make their argument, and that’s kind of where this strip had its genesis.
Historically, Stark and Rhodey‘s friendship goes back a long, long way, so they would, of course, understand one another far better than newer Avengers would (and certainly better than anyone who doesn’t know their secret identities). Although they’re friends, Stark and Rhodey, they have vastly different life experiences, which, again, positions them well to make the two sides of the superhero-as-activist vs. superhero-as-agent-of-the-establishment argument.
On a much lighter note, one of the fun parts of having a number of different versions of action figures of particular superheroes is trying to work in reasons for their costume changes. Why only utilize one Iron Man figure in the comic, when I’m sitting on five or six, right?