Emiya the Young Hero's creed in life drove Tohsaka Rin half-mad. Why would anyone think about saving others when they could barely save themselves?
Wasn't that just thinking they were dying too slowly and not miserably enough?
Yet Tohsaka Rin had to admit that this clumsy, even foolish Emiya Shirou before her did have some redeeming qualities. At the very least, he was far better than her unreliable Red Archer!
"Shirou, I acknowledge your resolve to save others, but not now. The prerequisite for saving people is... that you survive first." Saber was very satisfied with this generation's Master. Even if Emiya Shirou could not provide her with magical energy, he was still far better than the previous Kiritsugu Emiya.
"Saber is right. Blindly trying to save people will only drag you in as well. Meaningless sacrifice is the greatest disrespect to life." Tohsaka Rin supported Saber and ordered Red Archer to provide covering fire for their retreat.
"I know I might die, but if I just leave without doing anything..." Emiya Shirou's clenched fist trembled faintly. "What would the convictions I held all this time even mean?"
Emiya the Young Hero was full of justice and loved helping others, even willing to risk his life for strangers. That was precisely the source of his tragedy, because his dream was so great that even gods could not accomplish it. Thus, the more righteous he was, the more tragic his ending would be; the kinder he was, the crueler fate would be.
The current Emiya Shirou could not yet understand that. He only knew that he could not run away no matter what. His powerful conviction made Saber and Tohsaka Rin look at him anew. The boy shone so brightly that they could barely look at him.
This was true, because