Jonathan Cheban
The only reason this guy is famous is because of who he hangs out with. Nowadays, that isn't going to cut it. Sure, he's developed some endeavors with the help of his rich and famous friends, but what's left of him when you take that away?
Blogger by Nature
He has to spend his time doing something, so he picked up blogging. He blogs about food, and that's it. He's always on red carpets alongside his rich friends, but nothing else is striking about him.