alt Hacker NewsThat's an odd question to ask given the history of free media like flash games, youtube videos, deviant art/pixiv/etc, and fan fiction. Getting paid, especially enough that one can make a living off of it, for your creative work is an exception not the rule way more people create it for no money than ever make any money at all much less a living.
The media you cite are still copyrighted, meaning that it’s illegal for other people to distribute them or make money of it without a corresponding license. If that weren’t the case, creators might be more reluctant.