The drug industry has failed this country in the past, to the point where the federal government had to step in, back in 1906 to be precise, to regulate unscrupulous drug companies and vendors.
At that time, progressive social reformers insisted that it was necessary for the federal government to intervene to protect consumers against unscrupulous practices by food and drug companies and sellers.
While nothing is perfect, and there will always be those who flout the law, by and large the Food & Drug Administration has done a commendable job over the years of ensuring that our country's legalized drug supply is generally reliable and safe, within the bounds of current scientific knowledge, that is.