Medical ML is not about making decisions but about informing decisions. It is a tool for the doctor, not a replacement.
And a high volume if diverse quality data is fundamental: https://en.capillary.io/posts/ai-medical-diagnosis-guide/
Because Americans are trying to solve their healthcare crisis by attacking the doctors and literally not the entire rest of the industry which controls the spiraling healthcare costs. The end of result if we manage to eliminate doctors is still spiraling out of control healthcare.
Just like for wikipedia.