I'm not sure it's intentionally overlooked so much as a lot of role-players use mindless killing as a mark of how edgy and dark their characters are. While death and killing certainly always take a toll on someone's psyche, it's also important to remember that Hydaelyn's a war-torn world and Eorzea has its fair share or problems. Death isn't uncommon in this setting
But! I digress. Faye's killed a few people, mostly in self-defense. While it was pretty traumatic for her, she grew up a healer and had already lost her family at that point, so death and injury wasn't foreign to her. She mostly just pushed it to the back of her mind. But two deaths have taken a toll on her. First, her brother's. It wasn't in any way by her hands, but she considers herself responsible. She's become fixated on it and her primary motivation now is to do whatever she can to honor his memory.
Second, her father's death by her own hand. It was technically in self-defense, but she'd planned/wanted to kill him, regardless. Despite it being something she'd wanted desperately, she found herself pretty torn up about killing her own family member and it brought her no closure. She's pretty hesitant to kill anyone now, after that experience.
But! I digress. Faye's killed a few people, mostly in self-defense. While it was pretty traumatic for her, she grew up a healer and had already lost her family at that point, so death and injury wasn't foreign to her. She mostly just pushed it to the back of her mind. But two deaths have taken a toll on her. First, her brother's. It wasn't in any way by her hands, but she considers herself responsible. She's become fixated on it and her primary motivation now is to do whatever she can to honor his memory.
Second, her father's death by her own hand. It was technically in self-defense, but she'd planned/wanted to kill him, regardless. Despite it being something she'd wanted desperately, she found herself pretty torn up about killing her own family member and it brought her no closure. She's pretty hesitant to kill anyone now, after that experience.