My father was an elementary school janitor, so I have a different perspective than some. Something I've repeated often: "My dad worked for a living. I just play with computers."

Of course, in most offices in my part of the country, and I suspect in many other areas, is that the janitors are often Hispanic, with language being a common barrier. I wouldn't want to speculation about their immigration status, but knowing the economics here, I wouldn't be surprised either way. Unfortunately, it works out to be a de facto caste system, with the respect dynamic that accompanies.