Why not both?
If you want to make money being a professional photographer you’ve got to make your photography a business.
It’s your love for photography that makes you a good photographer.
But do you love photography enough to make it a business?
Amateur photographers say that they love photography too much to make it a business. I think that photographers who say this, don’t love it enough. If they did, they would not pursue photography as something distinct form their “real” job, and they would put a monetary value on their work.
Professional photographers dedicate their lives to photography out of love AND they generate income doing it.