Many entrepreneurs strive to one day add “millionaire,” or even “billionaire,” to their list of achievements. It’s become an industry-wide sign showing they’ve finally made it in business. But billionaire investing mogul Warren Buffett hit back at the notion that eye-watering net worths equate to excellence. “Greatness does not come about through accumulating great amounts of money, great amounts of publicity or great power in government,” Buffett wrote in his final Berkshire Hathaway shareholder letter p ...