If you take billions of taxpayer money to fund your research and get special access to information from government agencies like the NIH that the taxpayers paid for, and then you try to quadruple the price of what you're producing after you've already sold billions of units at a nice tidy profit, yes, that's greedy.

If pharmaceutical companies were free market entities who took all of the risk of developing new drugs, then it might be justifiable for them to charge whatever the market will bear. But that's not how drug research works in our society; in our society, we already pay for much of the research with our taxes, so pharma companies that are doing parts of the research and producing the drugs are not operating in a free market. They are benefiting from government largesse, and there are limitations that go along with that.