Fridge Horror: The ending brings up a lot of this. Your character dies in the end to destroy the corporation's airship, leaving your brother alone. Even if he gets lucky and the wreckage from the airship doesn't hit him, he still literally cannot move at all with his broken leg. Moreover, it's uncertain if there are any people who know that he is there, and where to search for him, or even whether there are any other humans that haven't already been placed into the vats by the corporation, and who might still stay in them now, since there may not be anyone else to break them.
Fridge / Monochroma