And that could be a great opportunity to really show the insidious and dangerous nature of fascism itself within this medium. If handled correctly (which is not something I would expect current Blizz to handle, though DF as shown some improvements) a resurgent SC cam use dispossessed and forgotten every day people from Stormwind, Strom, Gilneas, KT (I could imagine particularly effective and radical members coming from Drustvar), etc.
Aside from just being bad guy fodder for quests - we could really delve into how these Scarlets came to be with quite humble stories like ‘Mike was just a laborer down on his luck, then the Scarlets came promising better wages’ only to find Mike laboring for the Crusade under worse conditions. Show that Jim, who just wanted to reclaim bits of Lordearon to have a farm, turned into a sharecropper in abject poverty with the ‘promise’ of his own farm. Sara, a mage whose family lived in Ambermill wants to return Dalaran as a towering, proud, nation only to find herself reduced to a Scarlet, unable to proclaim her national identity. Billie, whose family had to flee from their home in Duskwood from non-Gilnean Worgen, go one step further, burgled by Gilnean worgen and family ran into the woods to hide from the bandits, only to be killed by the undead, became a solider to eradicate all undead and Worgen - they have no souls, the only good worgen is a dead worgen, wanting to round up all Gilneans, etc.
This isnt to humanize these Scarlets, but terrify the observer as to how easy it was to become a Scarlet. Cause these are ways actual Mustache Underlings became Mustache Underlings.