'"I'm certain that it happens all the time", and I have no doubt whatsoever that the USA is especially active in this way.'

I doubt any thinking person really believes the US has the moral high ground here - however, it's not really a moral issue, and I don't think it's being presented that way, for the most part. It's a matter of one gang protecting its turf from the incursions of the rival gang. We are under the protection of one gang in the same way that serfs were under the protection of the local baron - whatever he and his thugs are up to, you rely on them to keep the rival baron's thugs out of your village - and if you see the rival's thugs poking around, you run to the castle and demand that the baron teach them a lesson. (If you're of a progressive turn of mind, maybe you try to establish relationships with the rival's serfs, and encourage your baron to try just getting along with his evil half-brother ... ).