Oftentimes, when a public figure has been maligned in the press, they try to redeem themselves by showing that they have a sense of humor about themselves, that they're not the self-absorbed wanker we think they are. Saturday Night Live is usually a choice venue for redemption because most likely, the cast and writers have already had their shot, but they're a bunch of comedy nerds who don't really want to cause a stir with people they come into direct contact with (who are also billionaires). Sometimes, these public figures come on the show and fail. But Mark Zuckerberg? Success.