Naked Capitalism has the article How the “Maximize Shareholder Value” Myth Weakens Companies and Economic Systems. The interview/article has a link to one of the participant’s paper The Myth of Maximizing Shareholder Value.
There is a discussion of how Milton Friedman and others introduced this myth to our society.
Consider first Friedman’s erroneous belief that shareholders “own” corporations. Although laymen sometimes have difficulty understanding the point, corporations are legal entities that own themselves, just as human entities own themselves. What shareholders own are shares, a type of contact between the shareholder and the legal entity that gives shareholders limited legal rights. In this regard, shareholders stand on equal footing with the corporation’s bondholders, suppliers, and employees, all of whom also enter contracts with the firm that give them limited legal rights.
Here is some economic thinking that Bernie Sanders would embrace if you asked him to enunciate how capitalism/democratic socialism works.
This is way outside the box of Clinton thinking. When she talks about economic plans that her advisers approve, I wonder if any of them take the premises of this article into consideration.