Well, computer games aren't funded because they are art but because it's a business... big games have big budgets... they create synergy effects... improve the location's value... create jobs... generate tax income... and so on and so forth...
Computer and video games are a very promising and future-oriented branch. If you compare today's business to the one 10 years ago for example, you will agree with me that there are great differences... the whole scene has vastly improved. And so, it's quite obvious that governments want to make sure to draw such companies and the working people into their own countries. That's why the comparison with a writer is pretty wrong. Mainly because a writer is just one person... the mentioned aspects don't play a role in the writers' branch.
