Re: OOC
I can't speak to your industry or how things are in the area where you live/work; but I can say with 99.9% certainty that that guy was, in fact, an asshole. Or, at the very least, completely off base with reality. Expecting someone—anyone regardless of education/experience/etc—to work 72+ hours a week and grow someone else's business without a claim to equity, without benefits or healthcare is unreasonable, regardless of the salary. Sure, there was a time (you knew me during this time) where I would have done a lot for $48k/year. But not with all the above. Perhaps that's precisely why every Millennial he knows gets sniped by Starbucks.
This guy sounds unreal. As I was reading what you wrote, I kept saying to myself, "don't take that job… tell me you didn't take it!" A part of me was also thinking it was some kind of joke, like after you emailed him, Ashton Kutcher would pop out of your laundry basket and tell you that you've been Corona Punk'd.
I still think that your experience here is crazy.
As I recall, I believe your chosen industry is law, correct? I have a close friend that I met while he was an intern at the insurance company I work at. He was in our claims litigation department helping prep different documents for opinions and such. He had everything planned out for once he finished his education and would quickly make partner at a nearby firm, or get hired on in our claims lit department and make $100k+/year and he'd get a condo downtown and date beautiful women three at a time, so on and so forth.
You get the picture, right? He bought into the story they were selling him. Now, he works in our bonds department and is on a path towards upper level management. He got out and never completed his law degree. At some point, someone in the industry sat down with him and told him how things are in central Iowa. How difficult and demanding the career he wanted actually is. About the sacrifice he'd have to make, and for years if he wanted to achieve the dream as they were selling it. Things I think you also know.
I don't think he quit his dreams of having a successful and fulfilling career—and he just recently bought a condo (in one of the suburbs). But I think he reevaluated what he wanted, and what he was willing to do to get it. Maybe this is that for you. Maybe it's nothing and just a weird experience.
But dude, you're a cool guy. You're smart and hardworking, and most of all you're worth a lot more than what that Boomer/Gen X is offering. And he's finding that most are astutely aware of this, hence his frustrations.
TL;DR: I think you dodged a bullet there. I agree, that dude sounded like he's gotten his head stuck in his ass.