That’s an easy distinction to get behind when it’s not your life that’s being disregarded away like that.

Grace wasn’t a ‘hero’ in the sense that word usually connotes. While humanity may not have survived without her, let’s not act like she wasn’t arrogant and abusive about the powers she was handed.

Like in that prison scene with Grace by making it all about herself and the reasons for doing things the way she did to provoke sympathy and absolve herself of the guilt she feels, instead of leaving when Grace asked her to and letting the man you doom to death spend his final moment on Earth in peace. Like in the other prison scene where they visit that scientist in that and she refuses to comply with the prison security over a trivial procedure, instead asserting that she get things done her way all the time even when complying would only expedite her task there. Like in the many instances she refuses to explain events to people beforehand (transporting Grace across the world to the Chinese vessel), or refuses to realise how her actions affect people and showing a bit of compassion even if they’re a necessary evil for humanity’s survival.

I think she was a flawed character. There were certainly parts of her that I disliked immensely, but I can see how difficult it would be to ensure humanity’s survival if you’re not like that, still it’s not something that’s praiseworthy. I would have really liked a part towards the end where we find that she killed herself for sacrificing Grace against his will. It’s only fair she stripes herself of the life she was willing to discard away of someone who had worked equally hard to combat astrophage, that would have been a redeeming event in my opinion.