Complex sentence: Earnings at the very top are higher than in any other sector of the financial industry and collectively the top 25 hedge fund managers regularly earn more than all 500 of the chief executives in the S&P 500.
Split into simpler sentences: Earnings at the top are far higher than in any other sector of the financial industry. Collectively, the top 25 hedge fund managers regularly earn more than all 500 of the chief executives in the S&P 500.