The by product is wealth.
Capitalism
Michael Dearing
9916

Hmmm, many would argue that wealth is the purpose in capitalism, not the by-product.

“There is one and only one social responsibility of business — to use its resources and engage in activities designed to increase its profits so long as it stays within the rules of the game, which is to say, engages in open and free competition without deception or fraud.” — Milton Friedman