One of the tell-tale signs of creeping apostasy among the Nephites- and, by extension, that of any civilization- is their obsession with costly apparel. It is noteworthy that the text seldom mentions the beauty or appearance of the clothing, only that it costs much.
When form has replaced function to such a degree that a people place a premium upon those things that are the most expensive, then their appreciation for that which matters most is fading rapidly.
On the other hand, when a people like the Nephites (at this period in their history) choose to be pleasant in appearance, to be “neat and comely”- not being obsessed with fleeting fashions and fads- then they have established proper priorities and will enjoy the approbation of heaven.
“And again, thou shalt not be proud in thy heart,” the Lord declared; “let all thy garments be plain, and their beauty the beauty of the work of thine own hands” (D&C 42:40).