I don’t think there is anything wrong with working “for money.” It a responsible thing to do, especially if you have a family or it allows you the stability to pursue things you love to do. Like writing. But if you can do something you love, like write, and get paid for it also, even better. That’s extra motivation to me.
Of course, turning your passion into your job, can make your passion seem like a job. That is always a danger.