So to prove the moral, the story follows along to destroy the family of Kino and the pearl is shown to have caused devastation and death.
This parable is a common one; wealth is the root of all evil. I disagree–though thoroughly wishing to have the opportunity to prove or disprove the theory personally. What I see, and what I still prefer to close my eyes to despite proof in little ways, is that man’s nature may be naturally evil and that good is an accomplished, learned feat that man has tried to breed into his nature over the centuries.
Had everyone left Kino alone to happily turn his pearl into the better things he wanted for his family, there would be no evil in the story.
But the story is about people.