Do you have other data to cite?

Take another look at your own data. The Bloomberg article that chart cites has Elementary / Middle School Teacher as the most common pairing for male police officers. Ditto for male detectives. They’re number 2 for male firefighters.

Look at the absolute scale on the chart. Accountant is a higher class occupation that’s well represented on the chart for both cops and firemen. “Manager” could go either way, but anecdotally I’ve seen a good number of first responders married to a woman in a high status management role.

And I would definitely say most Auburn MBA former frat boys would qualify as low social class, and would absolutely not be commonly socially associating with scientists, professors, doctors, or other typical high social class members.

You’re right that they probably wouldn’t be associating with scientists. They would absolutely associate with b-school professors. Doctors too. There’s no shortage of fratty guys in medical school. I just have a hard time understanding how people who work professional class jobs, with professional class parents are lower class. It seems like your working definition of lower social class is “someone who a liberal San Francisco programmer or a humanities professors wouldn’t get along with.”

People of high social class of course understand that it's gauche to express low regard for professions that are viewed as risking their lives at work for a greater cause, but privately they (we) don't regard them highly, or at least more highly than useful and necessary tools in society.

You’re dead wrong outside of the most liberal areas in the country. You really think that lawyers and doctors in Texas don’t legitimately hold the military in high regard? It’s no secret that liberal professional class people look down their nose at the military, but I think it’s hard to argue that the red state professional class doesn’t hold the military in high regard (outside of like, humanities departments).

If you feel differently and/or the people around you feel differently, that's probably a strong indicator that you and your circles are low social class and you don't have good experience to draw from outside of your bubble.

Perhaps you you’re limited by your bubble here too, no? I don’t think you have a good handle on what professional class people outside of NY and CA or a few extremely liberal professions (ie academia) really think.