Matthew Yglesias explains how Facebook’s ownership structure insures that if he so chooses, Mark Zuckerberg will have complete control over Facebook for the rest of his life. I find that fascinating:
To purchase a share in Facebook is to bet that at some future point some future person will want to take it off your hands for more money. You’re not getting even a notional slice of control in the company. There are no limits on the CEO’s ability to channel Facebook’s profits directly into his own pocket rather than yours. There’s not even a cheap-talk promise that he’s going to try to maximize the value of your investment. He created the company, he controls the company, he will always control the company, and he’s graciously allowing you to turn some of your working capital over to him.