It most certainly is important to how we live today. When someone you love becomes infected with an exotoxin produced by a staphylococcus bacteria, scientists use their understanding of these organisms and the molecules they secrete to come up with a way to kill those bacteria and inhibit their further growth.
You are failing to understand the distinction I am drawing.
They have evolved into people. You are evidence of it. As am I. So I guess we can talk about it.
I certainly am not. I believe in G-d.
It is possible that evolution is consistent with G-d, but the existence of G-d definitely negates any proof to evolution from our existence.