5-21. The oil industry has long been accused of degrading the natural resources of the countries it operates. Some aspects of this unethical behavior can be traced back to the governments in some countries that condone it, in the name of economic development. Do you think oil companies like Shell and BP should have an ethical business practice so as to protect the environment in the absence of specific government regulations or incentives in these markets? How does this impact oil companies since they seek to maximize their profits in a competitive market?