I came across a pretty dark argument recently for a biological cycle that drags back down whatever civilization goes up. There is also the Malthusian argument, and even the Spenglerian argument. The Book of Mormon teaches a pride cycle that ends in destruction, so we have scriptural authority for the proposition that progress always creates its own demise. We cannot expect this-wordly salvation.
We also have scriptural authority for the proposition that this-worldly salvation isn’t the only salvation.