Hell yes people are valuable to us simply because they are alive and because they are of the same species. Otherwise, no one would give a crap if a person gets tortured to death and hears about it on the news. By your logic I shouldn't give a hoot about the horrors inflicted on the Jews in World War 2, or any similar event.You've slightly misunderstood my argument. My intent was to point out that people are not valuable to us because they are simply alive. If they were, then we would have a hell of a time reconciling our existence with our love for life, given our destructive nature.
Of course, the closer a certain life is to you, the more it means to you. I care a lot more about my parent's then I do about some random person in Australia. But hell, how closer can you get than having a person living inside of you?