You create to sell? No, I think a fundamental part, for example of art, is that it can be created for no reason whatsoever. To give a personal example, I really enjoy music production and playing piano.. but I do it only for myself and have fun doing so.. i don't even share it with anyone. Does that mean I am creating but not selling? And does that mean it is wrong and a waste of my time and I should stop doing it? No, I'm just creating for the sake of creating.
Another thing I don't understand, is your end goal in life to get rich? And do you equal being rich with being happy?
That's not my worldview at all. I mainly care about three things, curiosity, ethics and empathy. But definitely curiosity, being able to learn everyday is what makes me happy. But that doesn't fit into what your explaining, I don't have to create and sell anything with what I've learned because the act of learning already gives me happiness.
Maybe I'm the weird one but I truly find that a life with the sole goal of selling and accruing wealth seems boring.