Robert F. Smith, CEO and founder of private equity firm Vista Equity Partners, just graced the cover of Forbes' richest Americans issue. With a net worth of $2.5 billion, he's ranked No. 268 on Forbes' list of wealthiest Americans. That puts Smith ahead of early Facebook investor Jim Breyer, who has a net worth of about $2.4 billion, and on par with private equity veteran and Philadelphia 76ers co-owner Josh Harris, who has earned $2.5 billion to date.