o - You can blow up the Boombox that is causing the good fairy pain. If the mobs are near enough, the explosion damages them.
o - The Shamlbers beg you to kill them. I think there is story line in Briarwood about them being captured, transformed and turned evil against their will.
o - Each of the captured Fairies thanks you for rescuing them before excusing themselves to take care of a little problem.
o - Even if you get close enough to the center to be attacked (she only knocks you back - no damage), Macannis says nothing until they defeat her.