I think a mindset to "get rich" or even worse "get rich quickly" is reallt bad for everyone even outside tech. There is certain amount of wealth you need so you need not to worry about food, shelter, kids, education, health, etc, that's all right, but beyond that it's just getting destructive. When do you feel "rich enough" already? $1M? $100M? If you don't worry about getting rich and just be ok with being mid-class, you can code whatever you like. Even without getting single dime from the hobby code you will learn a lot, you will get good with tools and quick to find solutions, easier to be employed and progress in your career. And I would believe happier in the long run.