In our relentless pursuit of growth, how can economics, ethics and leadership be reconciled?

Some time ago I attended a chilling presentation given by an economist on the effects of HIV/AIDS on South Africa. Using statistics drawn from other African countries, he concluded that the death rate from AIDS would depress GDP, but not in a direct proportion. As the average fatality was poor and more than likely unemployed, GDP would not suffer as much as the victim. His conclusion: the average South African would economically be better off. He then analysed various industries. In food, whilst mealie-meal makers would suffer, bread makers would benefit. So companies providing for the mass poor should, while their cash-flows are still good, buy into businesses serving those further up the income chain.