For all but one of the specific drugs mentioned in the article, the lab equipment and scientists were paid for a long long time ago.
One is a common hormone produced in the human body that was isolated over 120 years ago and has been used for medicinal purposes almost as long.
Another was discovered in 1952 and has been used in medicine since 1953.
Another was patented in 1961 and approved by the FDA in 1971.
The two related to abortion were developed in 1973 and 1980, respectively.