The concept of good and bad only exists because humanity created it. So humanity surviving at the expense of all else is good because we will it to be so. We are just an animal species that wants to survive and spread like all other animal species just as Darwinism made us. We are just pretty good at it. Humanity has the ability to survive the upcoming final extinction event that the sun will cause and spread life in the galaxy. I would say this is good, as without us doing this life itself dies.