Most of us really aren't horribly unique. There are 6 billion of us. Put 'em all in one room and very few would stand out as individuals. So maybe we ought to think of worth in terms of our ability to get along as a part of nature rather than being the lords over nature.
What a book a devil's chaplain might write on the clumsy wasteful blundering low and horribly cruel work of nature!
I am tortured when I am away from my family from my children. I am horribly guilt-ridden.