Narns, humans, Centauri, we all do what we do for the same reason: because it seemed like a good idea at the time. There was no profit, no advantage in letting you fall to an untimely and most uncomfortable death. It would distress the Commander to no good effect. So once again we return to, "Why not?" I told you before you left: no one here is entirely what they appear. If I surprised you, all the better.