That's way too harsh to describe a man's personal quest for adventure. It's not just vanity. You have no idea how many young minds have been influenced by this adventure. How many potential new startups will come about because someone somewhere out there thinks 'well this guy just gave up his life trying to cross the Antartic, what stops me from doing something perhaps tiny in comparison, but monumental in value, or something that I can undertake'. This is true of all adventurers who seek to accomplish something beyond perceived abilities - free diving, climbing k2 or summitting Mt.Meru on the shark fin route.
The indirect benefits of such expeditions have not been measured. If someone did, I'm quite certain, a ton of benefits will crop up.