Choosing what goes into the header of a subject is always a matter of selection and discrimination on the part of each editor.
Some people typically put all of a subject's occupation into the header. I don't. I think most people think of Francis Bacon as a philosopher even if he was also a mathematician, author, botanist, politician, courtier, military leader, teacher and astronomer.
"Weight" is enforced by the multitude of editors adding and changing articles. Once it becomes apparent that part of a header doesn't belong, we are each, and all able to fix it. But that doesn't make putting something into the header an "error" or "inaccurate", it's more a question of emphasis.
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