Cheerful pay the price

One day in 1923 some of the most powerful people in the world were gathered in an office discussing business. Among them, the most prominent six were the President of the largest steel company; President of the largest gas company; President of the New York Stock Exchange; The greatest wheat speculator; President of the Bank of International Settlement and The Great Bear of Wall Street. What are their names and what became of them? In 1923, who was the PGA champion and what became of him?