Alice said that she had killed many people on William's orders in the last few months.
Logically speaking, she should be at least a mid-level red on the system's list of good and evil, but she was just a light red.
That was because her actions were controlled by the electronic chip that connected her eyes to her brain. Even if she was unwilling, she would kill when she heard William's order.
At the same time, William had set up this electronic chip as one of the detonators for the dam base.
Alice's ability and her metal skeleton made her difficult to kill. She could send an alert to William at any time, and he could choose whether or not to blow up the base and destroy the evidence.
Whether or not Luke had placed Alice in Space 2 that night, the base was doomed to self-destruct.