Stephen Colbert used to be genuinely amusing. These days, he comes across as conceited and his jokes fall flat. However, it’s clear he’s a shrewd businessperson. His juvenile but deliberately inflammatory criticisms of DT helped him surpass Fallon in viewership numbers. Similar to how DT doesn't dislike the press—he actually relies on it—Colbert, who occupies the role of both comedian and political commentator, ha…