I saw a podcast with an allopathic oncologist who was making this exact point. The new cancer drugs are a fortune, often 5 figures, and they introduce new medications that end up being not only less effective but they have a lot more side effects. They also rig the trials, don’t use proper placebos and only have to show it is just as effective as you mentioned. But oncologists are incentivized to use the latest and greatest. Anyone seeing an oncologist is likely at a bottom point in their life relying on their doctor who is going to get a big kick back if he promotes the new drugs. Not to mention all the drugs you can buy in other countries for less than $100 and here can cost thousands.