Charles Best should have gotten the Nobel Prize for the discovery of insulin. He was a medical student when he became lab assistant for Banting for the summer. Banting was so annoyed that the Nobel comittee ignored Best that he shared his prize with him.
The Nobel committee did not fail to honour MacLeod whose main contribution to the discovery was to let Banting use a corner of the lab and supplied him with dogs to kill and two medical students as assistants -despite being very skeptical of the idea. So as you can see, the medical Nobel committee has low standards such that yes, anyone could win a prize - you don’t need to do anything scientific, or have an idea, or even think that a good idea will work.