Dodge is often misread or mistaught as setting a legal rule of shareholder wealth maximization. This was not and is not the law. Shareholder wealth maximization is a standard of conduct for officers and directors, not a legal mandate. The business judgment rule [which was also upheld in this decision] protects many decisions that deviate from this standard. This is one reading of Dodge. If this is all the case is about, however, it isn’t that interesting.
Fiduciary Duty is a lie created in the 80s to make corporate raiders more appealing.
Look up Dodge v Ford. This case set the precedent for what is now known as fiduciary duty.
They discuss it in the wiki article: