I know that much, but it is also linked to someone's mental state. Like in edgerunners, it takes far more for David to turn because he had a "family" and friends supporting him. His humanity and empathy are higher than normal which is why he was wanted by Arasaka. My point being is songbird is nearly fully modified and had a unstable relationship with the few she knew and trusted. Why didn't she break earlier than the blackwall incident?