I am not at all surprised that many of the wealthiest people on earth have distinct penny-pinching habits that have paved the road to their success and vast fortunes. According to this MONEY article, incorporate some of these habits into your own life and perhaps your own net worth will grow.
Until recently, the Dish CEO also stuck to company policy by sharing hotel rooms with colleagues while traveling for business. As Ergen once told the Financial Times, "My mom grew up in the Depression... I don't have a mahogany desk."