There is an option, without releasing the info that Big pharma kept secret some available cures, you may release it saying it's a new promising cure thanks to Big pharma research. Then later let the info leak it was already known. As a first step everybody will be happy : people who will be cured, Big parma which will ba valorized (until the truth) and nobody will be hurted by the truth as it won't be released yet.
Sorry to tke this example, but imagine Potus has a cancer, will you cure it or not ? If yes why would he get the cure and not the people. The situation leads to somehing weird.