BUS600 Ethics

Topic on Ethics dilemmas - Social responsibility vs maximizing profits
From Wikipedia, Social responsibility is an ethical ideology or theory that an entity, be it an organization or individual, has an obligation to act to benefit society at large.
But in reality, many corporations care more about maximizing profits of their stakeholders, they claim a profitable business could create job, pay taxes which could support government's social activities. On the other hand, some industries' product could bring harmfulness to human being.
For example, cigarette industry in China, is very popular and is one of major income of local government because of higher tax. In many poor area, especially mountain area, majority of blue collar workers have heavy smoke habits, which is the only way to relieve them from long hours' & intense work load; Smoking could induce lung disease or even cancer, suffering such disease, they could only wait for death, no money to go to hospital. Now some improvement from Chinese government to set up aid for poor people, but the fund is far from sufficient to cover all poor people need. Those people are the victim of cigarette industry. Statistical data shows the smokers' age trends down, younger, which makes me worry a lot.
What can we do?