An understanding of system thinking allows people to see the relationships of connected elements in a system. As you gain the insight provided by such knowledge, the ignorance of connections seems odd. It is hard to have an appreciation for systems thinking and not appreciate the fundamental interconnection between people, corporations and society.
Respect for people is another management principle that extends to social responsibility. Some companies may see respect for people as only respect for workers but a wiser approach is to view it as respect for all people (as Deming, Toyota, Patagonia and many others do).
Society makes the rules for how we live together. Corporations are allowed because society decided there was a benefit to society to allow them. One can argue the benefit to society is entirely independent of social responsibility. The argument that by ignoring the reason they are allowed to exist will result in that aim being met effectively isn’t what any quality management flavor I know of would suggest.
In the time of the robber barons in the 19th century those leading corporations tried to make the claim that the business world was amoral (morality didn’t apply in that realm). As a society we rejected that assertion. Society has decided morality and ethics do apply to business leaders. Even if so many business leaders themselves show a shocking failure to act ethically in practice (see the endless line of banking executive failures, etc.). The attitude of so many current CEO’s (that you deserve whatever you can take and if you are not caught and stopped it was fine) is passed onto those they work closely with. It is no wonder those people, that are suppose to be leading the organization, instead are just bleeding the organization for whatever they can get away with. That result is very likely when you fail to encourage systems thinking and respect for people (inside and outside the company).
There are many reasons for a corporation to be moral and practice social responsibility but the most important is that is it the ethical thing to do. In addition to that it will be effective. When you create a culture that treats the system as it doesn’t matter that is damaging. We currently do a bad job of systems thinking in general. Building an appreciation for systems thinking will provide great benefits. Ignoring the system impacts so you can justify unethical behavior is damaging.