I think he’s already set for life and he’s doing YouTube just for fun. I’ve heard that other YouTubers said that PewDiePie is incredibly wealthy because he invested a large percentage of his income on his heyday as a YouTuber. Looking back he only have two editors at most working at his videos and didn’t do “flexing” content.

But the point is that he won’t be able to reach people if he didn’t post on YouTube. He already kicked up a storm on the move to Linux video and this kind of exposure really helps with the general population.