Final answer:
The concept where board members prioritize the organization's interest over personal financial gain is known as loyalty, reflecting altruistic behavior that is crucial for ethical governance.
Step-by-step explanation:
The concept defined as members of the board putting the interests of the organization above their own personal financial interests is called loyalty. This principle is central to the ethical performance of board members and corporate governance, as it ensures that their actions and decisions are aimed at benefiting the organization rather than fulfilling personal gain. Within the philosophical discourse on ethics, this aligns with the notion of altruism, where individuals exhibit selfless concern for the well-being of others, and contrasts with actions driven by self-interest.