I mention the names of Tolstoy Henry James and perhaps the greatest of all Jane Austen if you want to know a novelist who employs this great skill of judgment discrimination and practical reason.
They remove people from dangerous and boring jobs they shouldn't have been doing in the first place, and put them in higher-skilled, higher-paying positions.
That includes many individuals with esoteric skills that are of little use in everyday life - like being able to instantly reckon the day of the week for any past or future date.
A royal commission reported in 1903 that the new immigrants were generally sober and industrious, rarely a charge on the public purse and skilled in ways the locals were not.