Plus a lot of rich-person-worship (1) and self-glorification (2).
(1) The press version: "Econ Tusk is rich, and he got there by working 22 hours a day, exercizing for 1 1/2hour, and taking a single 30 minute power nap. The secret of his success? Endless grit. It doesn't have anything to do with striking it rich by building a payment app as a regular nerd (that might just as well have gotten nowhere), and then diverting his efforts into media-friendly geek-wet-dream VC instruments that are perfect as opportunities of government contracts and subsidies".
(2) The interview/autobiography version: "How did I made it? I gave it all I've got, risked everything, and worked hard every day. Sure, it only 2 two years before we were bought and I made 100s of millions, working was mostly maginal helping our first employees in building the MVP, business meetings, bossing people around, and having the 'vision', the risk was minimal because I had an MBA and/or CS skills I could use to get a job anytime, and everything was paid by VCs anyway, but it was all grit I tell you".