I don't think the nerd/Ivy distinction you're making is significant. Most students at Ivy League schools are nerds, at least by the standards of broader society (you need good grades to get in). Few of them "network for a living."
If anything, the real distinction is that a network for college students is appealing to teenagers, who are the perfect audience for social media. A network for adults doesn't draw in this crowd.
If anything, the real distinction is that a network for college students is appealing to teenagers, who are the perfect audience for social media. A network for adults doesn't draw in this crowd.