5. Maha Vajiralongkorn – $30 Billion
Photo: worldlifestyle
With a net worth estimated to be $30 billion, the current King of Thailand, Maha Vajiralongkorn, is one of the wealthiest men on earth. He was just recently named as king after his father passed away in December of 2016. Since Maha was named Crown Prince in 2007, he was next in line to take over the throne. Prior to that, he was attending the Royal Military College where he graduated with honors before going to train with some of the most elite military forces on the planet.