It would be no exaggeration to say that John Clifton Bogle — known as Jack — did more good for the individual investor than anyone else in the past century. As the investment world remembers his passing this week, the plain-spoken founder of mutual fund giant Vanguard was best known for his tireless advocacy for ultra-low-cost funds and long-term investing. Called the father of indexing, Bogle created the first index fund based on the S&P 500 for individual investors and ushered in an era of low-cost investing that brought fees down for the entire industry. Throughout his life, Bogle fought for the small investor, not wavering in his belief that a low-fee portfolio buying all the securities in an index and held long term would outperform the average actively managed fund. And he was proven right. Today, Vanguard is the largest mutual fund company in the world with $5.3 trillion under management on behalf of 20 million investors in 170 countries.…