Believing BillG on it when you could just do your own review of the data is as foolish as believing JennyM. Being successful in one technical field does not make you a medical expert. Look at Howard Hughes, for example.
1) Proving yourself in a technical field gives me a better feeling about your perspicacity of another technical field (counter-example: Richard Feynman) than someone who hasn't. Mr. Gates has this background, Ms. McCarthy doesn't. Not a guarantee, but a first-order filter.
2) Your statement when you could just do your own review of the data negates your premise, unless you think parent is an MD.
3) Do you have any idea what Mr. Gates has been doing with his time and money since leaving Microsoft?
Doesn't that hold for every one of us as well?
Of course it holds, what point are you making?