how does darwinism matter to me?

"This skepticism about truth is also a direct consequence of Darwinism--so says the well-known deconstructionist Richard Rorty. Rorty devised his own philosophy by asking, what are the intellectual consequences of Darwinism? His answer was that ideas must be treated problem-solving tools that help us get ahead in the struggle for existence. In a New Republic article, he wrote that 'Keeping faith with Darwin' (notice the term there: "Keeping faith with Darwin"), means understanding that the human species is not oriented 'toward Truth' but only 'toward its own increased prosperity.'"

I find arguments against morality and ethics, pretty frightening. I see the possibility that if we view the world through a Darwinian perspective, humans are oriented towards their own prosperity. This is apparent in how countries deal with one another, how animals and the environment are treated, how individuals are out "to get theirs." So then, does this mean that those of us who are interested in the well-being of others, of animals, of the environment, etc., must not be "the fittest?" Scary thought. Or is this selfishness just the result of a less evolved mind? Is nature all their is? No Divine Being?

I find all of the various arguments put forth with the Darwinian label inconsistent. It seems anything can be argued with Darwinian proof. Rape. Infanticide. Atheism. The Divine.

I'm still working out how darwinism matters to me.