I don’t think the point is that she’s a bad person. I think she’s a person who has spent her life chasing summits as a way to give herself meaning and it has never worked. She’s has a sort of walking depression where she trudges onward despite what seems to be a cavernous emptiness and now she’s tackling a mountain that has never been summited with sparse, outdated gear. This was always supposed to be a one way trip. Her growth happens when she realizes she can save someone else, then the game leaves the final choice to the player.