The Kantian argument for the Stakeholder Model of Social Responsibility is that

$1.$

The freedom of the owners$/$shareholders is treated as a means to the ends of all other stakeholders

$2.$

The freedom of each stakeholder is treated as an end$-$in$-$itself

$3.$

The happiness of as many persons as possible is maximized by maximizing the well$-$being of the firm

$4.$

The happiness of as many persons as possible is maximized by offering low prices to consumers