UC Drugs Misuse Discussion

I’m working on a social work question and need the explanation and answer to help me learn.

Gamma hydroxybutyrate (GHB) was sold as a dietary supplement and used to stimulate muscle growth. In high doses, GHB has alcohol-like effects, and its recreational use led to banning it from dietary supplements in 1990. Its use as a date-rape drug led Congress to direct that GHB be placed on Schedule I in 2000. In 2002, a prescription version (Xyrem) was made available for treating narcolepsy. Xyrem is on Schedule III.

First, discuss your thoughts on the ethical implications of the development of drugs that are found to have effects that can be used to cause harm to others, such as GHB, and their continued distribution in various forms to the public. 

Secondly, it would seem obvious that those who use GHB as a date-rape drug do not consider ethics. Do you believe drug companies consider the overall harm and whether their profits outweigh the cost to society?