By Entrepreneur Staff  Between whistleblower revelations and the widespread outages of Facebook, Instagram, and WhatsApp, Mark Zuckerberg had a very bad Monday. According to reporting by Bloomberg’s Scott Carpenter, Zuckerberg’s net worth took a massive $7 billion hit due to a stock selloff. He’s down 5 percent to $120.9 billion, so maybe don’t shed too many tears. Zuckerberg’s net worth…