If I understand 4E correctly, all those situations are plausible, but none of those situations will be plotted out for a 4E encounter. In other words, in 4E, fighters using CaGI will NEVER ever fight a pacifist. However, a pacifist can be encountered if no PC has CaGI or the figher already expended his CaGI. In that case, it's OK.
Is that right? I think I get it, it just seems so incredibly unsatisfying to me. If I was a DM, I would apply the [I'm not an idiot] keyword to such situations to make the non-idiotic target immune to CaGI. Or maybe the player would voluntarily refrain from using CaGI? Or maybe the player -- being considerate of verisimilitude -- would evolve a mind-control origin backstory? More likely though, I would be playing 5E.