Here’s a fun fact: “Doctor” was an academic degree. It was originally meant for theology, but expanded as the scope of academia expanded and natural philosophy became the sciences. We still call the degree “Doctor of Philosophy” as a result of that. Being a doctor of something meant that you were qualified to conduct research and teach at the university level. It eventually meant that you have made a contribution to your field - your dissertation - and the expectation was that you had and would continue to publish research papers in scientific journals.
The idea of a “medical doctor” was a new addition. MDs don’t do research, didn’t do a dissertation, and in general are not equipped to teach and advance the academic understanding of their field.
So I agree. Scientists should get the blue shirts, physicians and surgeons should just wear scrubs.
That’s not a dumb question at all.
There are MDs who do substantive research in medicine and surgery. However, basic science questions and a lot of the applied research are done by MD/PhDs. The dual degrees are a signal that the person holding them is not giving MMR vaccinations to kids or fixing broken arms, but who are committed to doing active research. It’s not an absolute requirement - I’ve worked with brilliant MDs at the VA and UC facilities who are gifted researchers. I’m painting with a very broad brush there.