IIRC the price increase wasn't just arbitrary profit maximizing, that narrative was a character assassination by the media to facilitate a later conviction for some completely unrelated hedge fund priors. Everyone thinks he went to jail for the drug stuff, which wasn't the case, this was a political operation.

The drug itself was acquired from a company that otherwise was going to have to stop production of it... so his companies acquisition of it was to make it sustainable else it'd have left the market altogether.