I thought she was an interesting take on a character who is a pretty moral person but has no investment in being a hero. Kinda like V but on a much smaller scale. She's not really motivated by any higher cause - mostly, she just wants to survive. But she does consistently stick her neck out for others even when it's not in her best interest, and seemed to be on a genuine path to siding with the good guys towards the end, after Kubota makes it clear he has no interest in pursuing a non-violent option in dealing with Hinjo. Shame it just wasn't in the cards for her in the end.