Darwin would be rolling over in his grave if he found out that the "survival of the fittest" doctrine was taught almost two millennia before he proposed it. Yet, Korihor's "survival of the fittest" is not an explanation of evolution but a justification for social stratification and oppression. While the saints count their many blessings, Korihor counts his many capabilities. He demands that stepping on the little guy is okay because whatsoever a man did was no crime.
Neal A. Maxwell
"Some who do not acknowledge God-and, for that matter, some who do-proceed through life insensitively. Like Korihor, they apparently believe that in this life we fare only according to the individual management of the creature, and that everyone conquers according to his genius or strength (see Alma 30:17). To the 'strong,' this seems ideal, but what of the conquered and subdued? Injustice multiplies like insects in the sunshine." (A Wonderful Flood of Light, p. 85)
Hugh Nibley
"When you talk about 'the management of the creature,' that's a perfect expression. It's the manipulation of people as if they were items or products. You can manipulate everything with the psychology of salesmanship. It is the manipulation, the management of the creature." (Teachings of the Book of Mormon, lecture 54, p. 424)