The slightest mistake can sometimes cause a very big loss. Nothing is certain in life, and being a billionaire once doesn't guarantee that you will be one for the rest of your life, for the same reason, you have to take care of every little detail, to don't be susrprised like them:
Kanye West made comments that cost him his entire career. After making anti-Semitic statements, many brands that collaborated with the rapper decided to drop him, losing an estimated $400 million in one day. Immediately, he stopped appearing on the list of the richest men in the world.
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Another who was forced to leave the list of the top 10 richest people in the world according to Forbes, was Mark Zuckerberg, an eminent in technology and creator of Facebook and Meta. On February 3 of this year, Meta suffered a stock drop that left him without 31 million dollars, which caused his fortune to decrease drastically.
Elizabeth Holmes wasn't as famous as the two mentioned above, however, she came to be compared to Steve Jobs, because she had a company that was dedicated to performing extremely fast blood tests, since more than a thousand tests could be performed in one hour. Unfortunately, the company had to close as its methods were not reliable, and that's how she lost the 3,600 million euros that her fortune was worth.