I doubt anyone anywhere ever has been the "best" hire - even / especially the greatest hires of all time, there was someone who had the same (or better) skills.
There are ~8 billion others, rounded to the nearest meaningful number ~8 billion people never saw the job ad or applied for it or were eligable because of the exclusive network of "countries".
Unless there is an epidemic of Harvard Art Majors being made Head of Brain Surgery upon graduation on the back of their credentials, their merit and skill is still contributing something.
