For cancer,the World has only progressed in terms of preventive measures with the identification and avoidance well known carcinogens and early diagnostic programmes. Other than that progress has been spotty at best. There has never been a single known cure for cancer. There is also no pill or medication to prevent cancer unlike things like Lipitor. The only remediation is early isolation and removal of cancers cells.
30 years years the best and brightest aimed for oncology including one President Scholar. Not anymore for obvious reasons.
That the is also the reason why Kong and Rony Tan do well. There is a multi millionaire who has huge farm in Kedah that grows mushroom and sells the extract in liquid form for terminal cases. He gives part of margin to unscrupulous relatives and friends. You cannot buy the product on the open market. There are a group of Medical Doctors in the US who fly at the start of each week to Mexico where they run a clinic for terminal case and fly back for the weekend. They previously operated in the US but were banned as the therapy - drinking some kind of concoction cannot be proven scientifically.