How does the novella's conclusion complete Steinbeck's moral arguments?The Pearl by John Steinbeck

In the novella, The Pearl by John
Steinbeck, the moral arguments that wealth does not buy happiness, and there are no
quick fixes to one's problems are, indeed, completed in the
conclusion.

While the Pearl of the World provides the
opportunity for Kino, the Indian pearl diver, to obtain the assistance of a doctor for
his little son who has been bitten by a scorpion, it causes him much
consternation. For, Kino is attacked by prowlers and kills one, his house set abaze, and
he fights with his wife who wants him to throw the pearl back into the ocean.  Kino
tells her, "The pearl is my soul."  When Juan Thomas tells him to sell the pearl, Kino
replies that if he sells it, he will lose his soul.  During their attempt to leave the
village, they are followed and the boy, Coyotito is shot by an attacker. This accident
causes Kino and his wife, who were "one thing and one purpose" to now be divided
and become "removed from human experience."

When Kino
stands at the water's edge and looks at the pearl, it now appears grey and ugly "like a
malignant growth."

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And Kino heard the music of the pearl, distorted
and insane....[he] drew back his arm and flung the pearl...And the music of the pearl
drifted to a whisper and
disappeared.

Like Kino and
his wife, Juana, the pearl is tarnished, and it has no music.  Without their child, Kino
and Juana have no music, no happiness.  They have put too much value on the
pearl.