I'm going to be blunt here: both of them did alot for people where their names will live on forever.
Difference is, only ONE of those names will live on in BLACK society, the other will not
Which one DO you think I CARE ABOUT?
Not even trying to diss but this is ridiculous comparison.
You're essentially comparing fame and its affect on the masses with a profession that affects our lives in actual, tangible ways depending on what policies are enacted.
For example Muhammad Ali is a very loved, inspirational and influential individual especially for us but none of that compares to the doctors/surgeons who via their profession save countless lives yet no one knows who they are.
Being remembered and admired even after you're gone is cool but doing work that will determine the quality of life for hundreds of millions of people for years to come via the policies you are a part of enacting is a whole different level.