What you write is, to an extent, very true.
In my particular case I write because it makes me happy. Just the sole action of writing, organizing my thoughts, and crafting eloquent paragraphs. I enjoy sharing my experiences and helping others learn from them. I value good content —therefore I hate clickbait— and I strive to create articles I would enjoy reading myself.
I have a good job at an amazing company with an incredible team. Writing is not a must for my career, I could be as successful without it. But I do it for one reason: joy and fulfillment —yeah, technically two things, but a single emotion.