I remember liking her character a lot, despite everything. I could sense her humanity and it was clear enough that her motives were not your usual greed for power or money. Characters whose choices are driven by a "higher purpose" are always extremely complex and controversial, because they move in the realm of ethics, and because their motivations could be ours. 

This said, I personally consider the life of one single innocent person more precious than that of a thousand who could benefit from his/her death in the future. Unless that single person was me - in which case we might negotiate - I could never sacrifice a random person for a future which hasn't been written yet and of which we know nothing.

She isn't naive... She backed the wrong horse for the right reasons... But the wrong horse was already showing signs of being bad... She choose to ignore...

All her other actions are just back pedalling and covering her ass.