But these are mainly aspects of the process of diffusion of profits throughout the various stages of production and of the process of forming a normal level of profits throughout all the industries of a country. Their influence on the formation of the prices of single commodities is relatively unimportant, and their consideration is therefore beyond the scope of this article.
I am confused here why their influence on single commodities isn't important. Although they may be different following patterns of profit throughout production seems as if it could be valuable in a way to problem solve to cut out parts of ineffective production in order to raise profits.