Modern Finance Theory is not wrong, it's just incomplete...

Five key ideas that need to be added to the traditional story of business:

(1) The importance of purpose, values, and ethics, as well as  profits;

(2)  the centrality of creating value for stakeholders, as well as shareholders;

(3) seeing business as embedded both in societal institutions and in markets;

(4) recognizing the full humanity of people, as well as their economic interests;

(5) integrating "business" and "ethics" into more holistic business models.

When these ideas are combined, what emerges is a new story about the very nature of business, as well as a conception that is more aptly named "responsible business."

Taken from: The Power of AND, Responsible Business Without Trade-Offs