Both are important in evolutionary theory as it is not "survival of the fittest" but the ability to pass on one's genes that is important. And, care of infants, children, and even grandchildren is a critical part of that.
That is where altruism and compassion come in: a grandmother can help her genes to be passed for additional generations on by helping care for her grandchildren, while a grandfather in a primitive society was a valuable store of information aiding the entire tribe.
Too any anti-evolutionists see "survival of the fittest" and probably deliberately misinterpret that phrase (never a part of Darwin's writings in the first place) in an attempt to damage the theory they hate so much.
Chuck Colson seems to be among those.
“altruism and compassion as a result of evolution being one of the resident experts on the subject.”
For that matter, evolution should not have allowed a “God” concept to have even been formed in our species nor have allowed our species formed by evolution to be found at odds with nature!