For the sake of argument - what about more alive people, but with more dead animals / species and with failing ecosystems if something would not go quite as for

For the sake of argument - what about more alive people, but with more dead animals / species and with failing ecosystems if something would not go quite as foreseen with crispr method? That question is becoming more and more important as humanity has such larger potential of affecting the rest of nature - how much more valuable is human life over everything else on the planet...