Yes and no, admittedly "maximizing profits" is a poor description in absolute legal terms, but it's the accepted term in most board rooms. The link you provided is an interesting read from a philosophical perspective since I've gone through the process of selling a company I was invested in to a publicly traded company, which was a fascinating learning experience. However, the author tries to speak out of both sides of his mouth, case in point...
"The bottom line is that even if you think that corporate boards have a duty to maximize stock prices, they can still choose any course of action that is plausibly related to that goal over any time period they choose. Henry Ford lost Dodge v. Ford — in which he was forced to pay dividends to shareholders — not because the court thought he chose the wrong way to maximize profits, but because he went out of his way to insist that he was more interested in the greater good than in the Ford Motor Corporation and its shareholders. That’s why there is no effective duty of a board to maximize profits."
What the author describes is an absolute legal responsibility to maximize shareholder value, i.e. shareholder profits, which 99% of the time is the result of maximizing profits for the corporation as a whole.
Circling back to my initial point, there is a reason that companies act in semi-sociopathic ways, which again goes back to these responsibilities along with general human nature of greed.