I posted this quote in another comment, but felt the harshness of your tone may have been dervied from the topic of Christianity.
Christianity isn't the only religion/world view that has the perspective that your life has value to others, even if you yourself feel doomed.
From the Havamal, the wise words of Odin:
> The lame can ride a horse, the handless drive cattle, the deaf can fight and win. It’s better even to be blind, than fuel on a pyre; a corpse is of no use to anyone.
