Everyone knows Zuckerberg is a big cheapskate. He wears jeans, t-shirts and hoodies all the time, doesn't he? He donned that attire for a meeting with somber Wall Street investors, and even when he met President Barack Obama. OK, he upgraded a little for his meeting with the prez, keeping the jeans but swapping the tee for a shirt and tie [sources: Anderson, Gross].
But what about his wedding? The ring he gave his wife, Priscilla Chan, is a very modest-sized ruby with a diamond on each side; one jeweler estimated it to cost a measly $25,000. For someone of Zuckerberg's wealth (he's said to be worth at least $17 billion), Chan should have been given a boulder-sized beauty. Can't forget he also served inexpensive Mexican eats at the reception [source: Delfiner]. And when he and Chan were honeymooning in Italy, they ate at McDonald's once, and didn't leave a tip when they dined at two more formal spots [source: Squires].
The myth-busters dismiss all of this petty sniping. Maybe Chan didn't want a big ring. Maybe they both like Mexican food and McDonald's. And at one of the Roman restaurants where he and his wife supped without tipping (and maybe both), the gratuity was already included in the bill [source: Dalton]. So there.
The real proof he's no skinflight, though: Zuckerberg donated $100 million to start an education foundation to assist long-troubled schools in Newark, New Jersey. And Zuck has no connection whatsoever to the city [source: Pérez-Peña].