That is part of how research is conducted, and it's justified by relying on the concept of informed consent from research subjects and a requirement that the distribution of the risks and benefits of research are appropriate.

CNN: Exploitation or salvation?

As a venture capitalist, I would not have invested in cellulosic without corn ethanol's partial alleviation of the risks of creating a market, creating distribution terminals, E85 pumps and starting our flex-fuel fleet.

FORBES: Khosla Speaks