A Public Benefit Corporation is still a for-profit business entity. However, it differs from other for-profit corporations in one significant way: The corporation is required to aim to benefit the public (i.e., do good) and must include that purpose in its corporate charter. The corporation’s board of directors must take the goal of aiding the greater good into consideration in its decision-making and must report on the corporation’s social impact.
Source: Giving Thanks for Social Purpose Corporations | Stacey Romberg