Are you saying Friedman doesn’t think capitalism needs an ethical or moral framework? That it provides one all by itself?
Friedman states, there are three alternatives for a monopoly: public monopoly, private monopoly, or public regulation. None of these is desirable or universally preferable. Monopolies come from many sources, but direct and indirect government intervention is the most common, and it should be stopped wherever possible. The doctrine of "social responsibility", That corporations should care about the community and not just profit, is highly subversive to the capitalist system and can only lead towards totalitarianism.
Fridman says, "History suggests that capitalism is a necessary condition for political freedom" and that, "the most important single central fact about a free market is that no exchange takes place unless both parties benefit." that is the closest he comes to a moral or ethical framework.
I'm not kabar, but please see my post 313. :^)