No - I save under-geared tanks during dungeon runs. I save healers who can't move when tank fails interrupt on Ifrit because they're busy healing. I save healer when Tanks die. I save people on Wanderer's during slime fight. I save people who happen to take void thunder when they're not suppose to. I save people who can't dodge void fira for some reason.
I save virus for mountain buster.
I'll save even more people when Shiva and Ramuh comes out.