The child's brand and durability establish his intrinsic value. Since God created the child and stamped him with His image, the child has to be of extremely high worth. Since the child is alive to live forever, he has to be incredibly valuable. The redemptive life and death of the Son of God further enhances this instrinsic worth of the child. The enormity of the price paid for the child defies human price fixation.
Nobody better do anything to challenge or redefine that worth.
When they first arrive into the world at conception, they don't amount to much in a practical sense. Through development, training and use, that will change. Though my computer had plenty of manufactured value, the teaching I have given it has also given it useful, practical value. My computer's worth was burnished and enhanced by its functionality. As it performed in accordance with its design, it achieved practical perfection.