Orcs were made from elves, not the other way around. And that is not my subject here. Beauty comes first.
We are free to accept ad hoc evo psych explanations if we wish. Like astrology and palm reading, they make good conversation pieces.
Around 50 BC Titus Lucretius Carus wrote a long treatise against finding purpose in nature.
Perhaps it is awe-inspiring to evolutionary biologists to try to work a puzzle, trying to find how everything is connected by common ancestry.
The passionate focus on evolutionary relationships in biology papers tends to obscure awe at the wonders in life.