I should probably say that I created the Occupations by Country category as a place to dump all the categories within it, because they were cluttering up the Occupations category. Personally, I don't see the value of building out entire occupation category trees for each country, although some occupation categories (like Farmers) are so big that it makes sense to build out geographic subdivisions, since a farmer in Tasmania isn't terribly likely to be related to a farmer in Saskatchewan, whereas two farmers in the same county could well be related to one another somehow.
That said, if anybody wants to build out such category trees, I wouldn't try to stop them. And it would be nice to have consistency there. Personally, even though the trend in the Categorization Project is against it, I'm in favour of categories like "Occupations in Place" rather than "Placian Occupations", partly because the demonym for the United States of America is "American" (which, as has been pointed out repeatedly, is problematic), and partly because a term like "American Occupations" implies that people can't do those jobs in any other country, which is not the case. I'm also not partial to options like "United States of America Occupations", simply because they're bad grammar.