Fuck everything about this attitude. I don't know where it started, but this sort of uber-Rand-ism is just flat out wrong. It is this same sort of short-sightedness with regards to morals vs profits that caused Alan Greenspan to famously state: "Those of us who have looked to the self-interest of lending institutions to protect shareholder's equity – myself especially – are in a state of shocked disbelief."
Disbelief my ass! "Fiduciary duty" is not an excuse for corporate raping and pillaging of a society (which, in effect, is what this is). Any student of economics who understands the concept of Pareto efficiency should understand that any action which causes an overall detriment to the economy or the society at large cannot lead to sustainable profits for the company involved. Sure, you can make a lot of short-term gains walking down the street and robbing everyone you see, but it's not a sound formula for long-term profits.
Fiduciary duty is no excuse here. What these companies have done is reprehensible on its face and it is a shame that it is not outright illegal! (Consequently, before anyone cries "First Amendment!", I would add that this type of situation is also a good reason why corporations should not enjoy the same status as individuals under the law.)