Intelligence — a gift of evolution to humans, is their undeniable superiority over other species on our planet. It endowed them, as they "believe," with the "right" to exterminate others for their benefit, but the laws of justice "exist" in nature itself. If humans do not become truly humane and spiritually developed, they will ultimately exterminate themselves.
Value is a property of a person, society, phenomena, and things, having important significance for a meaningful, safe, and comfortable human life, and broadly — for the "full well-being and flourishing of humanity" as the highest value in turn and the main measure of other values.
If humanity could conquer death, life would probably become more tempting and thrilling. There is a significant chance that in a prosperous distant future, this might be the case. However, for today and indeed for the age of mortals, the humble acceptance of mortality is important and sensible. Yet, it's even more crucial to rationally utilize the time allotted to us and to live fully in the present — for our loved ones and ourselves, for all that is valuable, and for the future immortal Humans.
The greatest wealth of humanity is measured not only by the number of happy generations but also by the magnitude of its responsibility for a happy future.