You are evidently hitting a nerve with this proposal. When you do that you’ve got a hot topic. If it is going against the grain, then it probably needs to be exposed. I am very curious as to how your story series will handle the issue of independence/dependence for girls. Though I am not of color (my granddaughter is), it was one with which I came to terms as an 8-year old female. It boiled down to I decided I needed to stay home and get my high school diploma so I could find a job and get out on my own. I knew then, back in the middle of the last century, no one would hire a young girl at any decent wage unless I had at least that credential. My conclusion was based on my values, particularly I wanted to be beholden to no one. By the way, I stuck to my plan, and I ended up going to college at 17. So I am excited about your idea.
To answer your questions: No, money is not inherently bad, not anymore so than any other tools or talents or non-monetary resources we use to develop ourselves. And why shouldn’t girls pursue making money? We should be teaching our girls to take care of themselves; in order to do that, they need to know how drive the car, so to speak. They need money, to be productive and earn their own way, to be able to make the choices, or they will be dependent (poor or not) and they will be exploited. You know that and say that! God knows, how I abhor training girls to be dependent. So I suppose it comes down to what are the values you elicit through your character. You are probably challenging old belief systems about money, greed as a function of money, female entrepreneurship, and female self-sufficiency that people are not even aware they harbor.
Best wishes in this pursuit.