[ceejayoz]

> They were already doing it with the carousel (google "american inventors")

Maybe.

There's a chance you're seeing an unintentional side-effect of inclusion-oriented school projects getting hordes of people to Google stuff like "African American inventors".

[vxNsr]

Try googling "black inventors" and then "white inventors" it appears they are directly editorializing.

[ceejayoz]

That potentially shows the same phenomenon - kids given a Black History Month assignment to write a paper on a black inventor - and it's fairly clear there's some sort of automated threshold at work.

As evidence, I really doubt this difference is editorial-based:

https://www.google.com/search?q=purple+musicians (shows the carousel)

https://www.google.com/search?q=purple+inventors (no carousel)