"Do you think we'll survive and if we do....will it be worth it ?"
"I am dedicating the majority of my calculations into optimizing our chances of survival, you can be assured I will make sure we will get out of this with our lives." in her own way, the alchemist was trying to reassure the homunculus girl.
But in regard to the worthiness of it all, the serious acting girl didn't have a clear answer, she wanted to survive in order to still have a chance at restoring the Eltnam name, and that wasn't something she had to ponder before, she just decided to do it. She didn't know what would drive this girl in particular.
"Wouldn't such a question be better posed after survival as been secured, such doubts could certainly hold us back, Miss Theodore."