Life matters because it comes from Him. All people matter because of who made us, we are His handiwork, the breathe of His mouth. Each person is unique and can display God's heart and character in a way no one else who has ever been created can.
I just recently heard about the show Born This Way that follows the life of seven people born with Down Syndrome and I think it's a step forward to have a program that displays the value of life and how even when people are different that us, they are still valuable. Season two premieres Tuesday.