The Copper Marketing Fail
Yasuo Hamanaka was an investor who wanted to dominate the market on copper. Unfortunately, his business practices were less than noble, but no one realized that this was how he had become successful.
Also, he was considered a person with a position of power because he was one of the top copper holders on the planet. But his copper schemes were revealed when the price of copper fell. In the end, he lost $2.6 billion and was also placed behind bars.