Read the article. The company wasn’t the one to discover it. They bought it for pennies then put in minimal research to further develop it, but only based on the research of another doctor who wasn’t with the company. Then they put in another round of research to develop it once more only to cheat the patent law, not to improve the drug efficacy. In the end they spent far less than the normal amount to develop what normally justifies the cost. Then, the price hikes were independent of development pushes and were tied only to quarterly profit demands.