I don't know. I didn't manage to talk them down on my first playthrough, so who knows, but I don't think so. But I also don't think every game or even every RPG needs to be designed with a complete pacifist route in mind. The Shaw Gang mission is also about the only one I can think of that actually fits completely with the "formula" you described, outside of maybe the tutorial.

Also, yeah, Space Pirates might actually be a quest for you, or rather being an undercover agent in the space pirates. You just get straight up thrown out of UC SysDef and have them as your enemy if you run and gun those missions, so you have to sneaky, use your persuasion and actually look around your environments if you want to stay with the good guy faction. The part on the cruise ship is especially good for this. Your choices there definitely matter in that regard.

Maybe it's just a game for people that are really into space in a specific way. Like, sometimes I'll just look at pictures of the surface of Venus or Mars and think about the fact that there's billions of these worlds just existing with no observer. Just rocks, dust, storms, rain, volcanoes, all types of things being there and happening, even though no one can see it.