I believe that reform is possible, but in some cases, like hers, likely only through force.

Well yes, people usually don't reform themselves and the systems that make them this way usually resist non-violent methods of reorganizing them. Fartlow, though, is fundamentally a pathetic person that poses no threat as an individual - she's not a leader, she's a follower, to put it in binary terms. This is the person who was afraid of a "Free Parking" sign. If you put her in an environment that rewards not being a genocidal monster (as @purpleworm@hexbear.net said), then she would likely stop being a genocidal monster fairly quickly because, as I said, she's pathetic and I doubt she has actual convictions of any kind about anything.