The idea that life is becoming less valuable seems really weird to me, especially in the US, though I'd be surprised if there's more than pockets across the globe where it's not the case.
It's hard for me to think that life is valued less today than it has been in the past, when I consider the falling support for capital punishment, the decreasing cases of capital punishment, the fact that we used to let people buy and sell humans as a commodity (and that we no longer do), etc.
Ok, then let me turn the question a bit... If you hear that your neighbor just lost his job and he can't afford food for his/her family, what would you do?
Now, after you answer that, how many times do you check on your neighbors to see how they are doing.
And finally, how many neighbors do you spend time getting to know instead of learning about the ones your around all the time with at work and/or a bar?