As the venerable Robert Glover has pointed out: Nice Guys don't finish last... They rot in middle management. The fellas loading trucks out in receiving, who exude far more of a masculine edge than said middle manager, are stirring the loins of women with much greater and more intense frequency than he and his Rolex are
Various blue collar workers are better positioned to get pussie than a good portion of white collar workers.
Blue collar work is more masculine than white collar work. There's a certain masculinity in being an auto mechanic, plumber, dockworker, or other manual laborer.
In terms of real world approaching, blue collar workers and white collar workers tend to interact with different types of women. The manual laborer or skilled tradesman is often interacting with women who are retail or fast food workers and have less than a bachelor's degree. The white collar worker guy has a tendency to interact with women with bachelor's degrees or higher who also work white collar jobs. These are very different types of females. They go to different nightlife venues and different daygame venues too.
One of the best examples of this would be doing approaches at Walmart vs. doing approaches at Whole Foods. A plumber or construction worker might approach women at Walmart whereas some white collar guy might try to approach privileged White women at Whole Foods.
Blue collar and white collar men can overlap on swipe apps. Even swipe apps can be a bit targeted. Bumble has done better with the more educated, white collar audience and Tinder has declined over the years to be more of a mass market and less of a bougie market.
Nice guys (usually blue pill ideology beta males) might rot in the middle management when they are older. A lot of men who get bachelor's and advanced degrees don't even get to middle management until they are 35-40 or so. By then, a good portion of them have wives. Often times, they either got wives on the strength of a having good social circle (few relocations in life) or a willingness to dumpster dive on an app or in nightlife venues. If a beta lacks a good social circle and isn't dumpster diving, he's more likely to be in the mushy middle of the mating environment and overlooked/invisible. Even some game aware, red pill ideology men can have this happen too. There are also plenty of nice guy betas in non-managerial white collar jobs too. These men are nearly as plentiful as the middle manager beta males. When men feel like they are being overlooked or invisible, that's when they are considering purchases like Rolexes and other luxury brands.
Part of what exposes this Alpha/Beta notion as horse-hit, when we take it entirely too seriously: Aren't those dockworkers Betas, in a socioeconmic sense, and isn't the Rolex wearing middle manager an Alpha in comparison them? At least if we're now taking those terms as literally as much of The Manosphere does
The Alpha-Beta framework and the differences aren't solely on money. It's a combination of things, including attitude and physical appearance.
A blue collar worker might appear beta but they do have masculinity from doing physical labor. That has the potential to change their attitudes and physical appearances.
A white collar worker in middle management who buys a Rolex might appear to be more of an alpha male, but it often is a good disguise. The work environment in most white collar offices is sexually sterile. White collar workers are often concerned about getting accused of harrassment by female co-workers and concerned about having to talk to a Human Resource Associate or Human Resource Manager. That's not fun. Additionally, in most companies, middle managers have limited power. They are the pawns of upper management and often have no real input in major strategic initiatives for the company. They can also be layoff targets. None of what I've just described is particularly alpha.
For 40-50 hours a week, that middle manager male is not living the life of an alpha male. It's possible that a middle manager with a Rolex might have more of an alpha type attitude in his personal life and he might even play a sport/lift weights too. For 40-50 hours a week, he's a beta to upper management in his white collar job. Some of that subservience in the corporate world and the sexual sterility of a white collar working space might affect his overall attitudes and behaviors in life.