And telling companies that their only obligation is to maximize shareholder return is also bad.
Depends on the state. The "maximize shareholder value" obligation is hardly universal. For example, the Pennsylvania BCL in 15 Pa.C.S. § 1715(a) says in regard to the fiduciary duties of corporate directors:
(a) General rule.--In discharging the duties of their respective positions, the board of directors, committees of the board and individual directors of a business corporation may, in considering the best interests of the corporation, consider to the extent they deem appropriate:
(1) The effects of any action upon any or all groups affected by such action, including shareholders, employees, suppliers, customers and creditors of the corporation, and upon communities in which offices or other establishments of the corporation are located.
(2) The short-term and long-term interests of the corporation, including benefits that may accrue to the corporation from its long-term plans and the possibility that these interests may be best served by the continued independence of the corporation.
(3) The resources, intent and conduct (past, stated and potential) of any person seeking to acquire control of the corporation.
(4) All other pertinent factors.
(b) Consideration of interests and factors.--The board of directors, committees of the board and individual directors shall not be required, in considering the best interests of the corporation or the effects of any action, to regard any corporate interest or the interests of any particular group affected by such action as a dominant or controlling interest or factor. The consideration of interests and factors in the manner described in this subsection and in subsection (a) shall not constitute a violation of section 1712 (relating to standard of care and justifiable reliance).
This has been Pennsylvania corporate law for nearly 30 years. Pennsylvania corporations absolutely do not have to maximize shareholder value, and they can equally consider their employees, customers, and communities.