I will give you a maybe about the birth defect. It has been a while. I initially recalled it being a birth defect, but then
I am pretty sure you are wrong about her father selling her thing
Her family thinks she is dead though. And she explicitly states she is there willingly.
Also, quote where I said the organization was being altruistic?
Yes, they planned on making her a whore after giving her replacement limbs.
Doesn't change the fact that they are not the ones who chopped off her limbs, and were working to restore her missing limbs.
As for the MC being responsible for her happy ending... of course, so?
You are there, that is the whole point of the game.
And every other complaint that guy had was of bad things you could NOT prevent.