The books have a moment that really illustrates this and makes my list of most amusing moments.This is the one that was nagging at the back of my brain but I couldn't quite put my finger on it. Moiraine is SO dedicated to Rand (which to her, sometimes means controlling him, but I digress). Rand has to save the world. No Rand, no world. That means a threat to her, her Warder, her fellow Aes Sedai, everything. So if protecting Rand means using the power as a weapon, I think she could (and probably already has) convinced herself that defending him IS the last defense of her life.
During the battle of the Two Rivers either Allana or Verin isn't tossing fireballs at Trollocs. When Perrin confronts them about it she emphasizes that she didn't feel in danger until, right, this, moment.,
Edit to remove the pocket mess 😂