Arguing that capitalism is moral and arguing that capitalism requires morals are not remotely like the same thing.
In “Capitalsim” she takes pains to note that we (even back then in the 60’s) do not have a capitalism in the US. Instead we have a “mixed” system of capitalism and gvt intervention.
This, she point out, is essentially fascism, as opposed to socialism.
The capitalists still ~own~ the means of production, however the gvt really controls them.