People make games because they enjoy it. You are right, our current gaming industry of delivering broken games with overpriced DLC exists because of the capitalist market. Further, the current gaming industry is plagued with crunch, non-paid overtime, abuse, and low wages, which scares off people who actually have a passion for making games but do not want to suffer without basic needs. I think games should be made with passion and love, not primarily because you can make money of of it. You also forget to mention the millions of people in capitalist countries that die of things like starvation despite having food to feed everyone. Also, the author behind the book you reference in your username is a socialist, and he dislikes capitalism.