Creative writing is exactly what I'm doing now, and it can span from books to articles to screenplays. The reason why it's a loser job is because who deserves to make a living out of thinking of fun stuff? It feels like an indulgent job that doesn't really help anyone. It's nothing like a doctor or a police officer, for example. But creative writing is an important job because it encompasses all of communication. If you can communicate, you can have power.
While it is very hard to make a living as a creative writer, there is a lot of money in it if you pursue the right avenues, are talented, and work hard. You can pursue simple article writing which pays little but can come in abundance, or the more rare position of selling screenplays, which can pay immensely.