What do John Maynard Keynes, Warren Buffett, and George Soros have in common?

What do John Maynard Keynes, Warren Buffett, and George Soros have in common? Their liberalism is not a simple case of "kicking away the ladder after reaching the top": An anti-capitalist perspective gives them the psychological distance to exploit the capitalist system more effectively than people who have a quasi-religious veneration for market economies.