Corporations and Human Rights

What is a corporation's role in dealing with countries whose Governments have questionable human rights? Should a corporation be singularly focused on generating shareholder value and spend its precious capital on non-core and non profit generating activities?
Is the economy that generates so much of wealth in the developed countries applicable to even countries that have no democracies or rules of law?
Is the argument to not interfere with the market forces a valid one when the former depends on the existence of democracy and rule of law?

John Ruggie answers (PDF) these in his special report to UN on Human rights.

The root cause of the business and human rights predicament today lies in the governance gaps created by globalization - between the scope and impact of economic forces and actors, and the capacity of societies to manage their adverse consequences. These governance gaps provide the permissive environment for wrongful acts by companies of all kinds without adequate sanctioning or reparation. How to narrow and ultimately bridge the gaps in relation to human rights is our fundamental challenge.