Case Study $2\mathrm{.}2$: Testing Drugs in the Developing World

$1.$ Several critics of the drug companies have claimed that the companies' practice of testing drugs on poor people in developing countries violates principles of justice. Why would they say this? Which principles of justice would be involved?

$2.$ Some critics of the drug companies have argued that the doctors that have agreed to participate in the drug trials have violated the requirements of the ethic of care. Explain why these critics are right or why they are wrong.