So I was walking around on the Windhelm docks when suddenly an Argonian decided I needed to know that "Argonians do the all the jobs the Nords don't want to do." Interestingly enough, when I preceded to stroll about, two NPCs referred to Argonians as lazy, and that they need tyo get a move on, etc.
Actually that's just the general attitude towards any immigrants throughout history. Irish immigrants filled a similar role in America during the 1800s.