I think an area where Darwinism is relevant is the whole concept of individualism.
Early life on Earth consisted of cyanobacteria. Relatively primitive bacteria that could derive energy from sunlight through photosynthesis.
Bacteria existed as just single celled organisms for almost three billion years, then something happened that caused many of them to take up symbiotic relationships with other cells to for example become the mitochondria in the cells of all mammals, or to differentiate and take up specific roles within a colony.
Man lived pretty much independently or in very small groups until the invention of agriculture.
At that point we had more time to do things other than collect food. So we started developing technologies and making all sorts of goods. It became in our interest to aggregate together to exchange these things and villages were born.
Just as cells in your body differentiate to provide different functions in different organs to sustain the survival of our bodies, so today we as individuals differentiate into different functional units to help sustain civilization, a kind of super-body of which we are all cells. And just as our bodies cells usually don’t have any choice in what they become, it is usually a function of location and various chemical gradients, so also do we often have not much choice.
If the cells in our body behaved the way many of us do, did not function for the sake of the whole organism, the whole of our society, the whole of humanity, then we are to the body that is civilization, a diseased cell, and if we’re bent upon amassing resources and reproducing, cancer.
I’ve been a diseased cell of society, maybe even a cancer. I know what drove my desire to reproduce was the knowledge of my own mortality. What allowed me to get past that was the discovery that there is more than this physical plain and that on some level we will live on indefinitely. I think that many animals, cats and dogs, and others, know this either intuitively or perhaps they don’t forget their past at the end of a life or prior to the beginning of a new life, and that is what draws me to them. Also they have somehow learned to live their nature and yet not be at odds with each other. Now I desire that society become as functional as possible so that we might collectively realize that which was intended for us.
It’s hard to do though if we’re all fighting. At one time I thought we were fighting for resources, but these days it seems more ideological. Someone wronged someone three hundred years ago and descendants that had nothing to do with whatever the original assault was still seek revenge. Perhaps the societal equivalent of an auto-immune disease.
I don’t know how we get past that, Jesus tried to get us past that 2000+ years ago but we’re still at it.