Actually, uhm, that's exactly what it does. At least in this culture, a person's job is what separates, differentiates, and defines the social classes within the social hierarchy. In egalitarian, or non-stratified societies, like hunter-gatherer or forager societies, usually small groups, or even the more modern Libertarian Socialists who have abolished social inequality, social classes do not exit. But most everywhere else, they do. Social class, or worth, is determined in part by personal or household per capita income or net worth, ownership of land, property and means of production, their occupation, education and/or qualifications, and often their family background.
Also a defintion of a social class.
Depends on the context. A college education, in and of itself, means very little. But it mostly depends on what class you are in, both with and without that college education, and whether your social class is from an Ascribed Status (achieved by virtue of your birth) or an Achieved Status (obtained by merit, skills, actions and abilities). You can be a burger flipper and still have a high social political status in many situations, like within the church, or social organizations, where one's class in one social area may not translate to the same class in another.
The point you seem to be making is that one's job doesn't determine one's personal net worth insofar as integrity and character.
As for the stereotype of the dumb, uneducated trucker, it is, like most stereotypes, rooted somewhere in the truth. By and large, truck drivers tend to be far less educated than the population at large. One cursory examination of the written communications skills and grammar to be found here makes a strong case for that stereotype. By the same token, there are people here with little or no college education that posses very strong communication skills, and there are some very well educated people here who can't type for diddly.
The trucking industry as a whole is very well grounded in the stereotype. And like it or not, there is a social class within the industry that separates out company drivers, independent contractor-drivers who drive for fleet owners, fleet owners, and owner/operators who drive their own trucks. Drivers may be operating their own business, but it's that truck ownership, that ownership of property and the means of production, that differentiates the owner/operator and fleet owner from the driver.
Now, having said all that, there is very little about the trucking industry's stereotypes that can directly be applied to the expediting segment, with the lone glaring exception of the cargo van driver who drives for a fleet owner, as there are many stereotypical similarities. But in general, the expediting segment of the industry is simply too different.
One of the defining aspects of expediting is the vastly varied previous occupational and life expeiences of those in the industry. Many in expediting have retired from previous occupations and have chosen expediting as a second career. That's a rare thing in general trucking. In general trucking, someone who is highly educated or highly experienced in another field tends to be the exception rather than the rule. The expediting industry is loaded with people from other professions and experiences.
