Okay, so I think we're largely in agreement except for a little misunderstanding. I'm glad because that means you might be a little more receptive to some of the stuff I might share. I have more links but I'm writing this novella on my phone if you can believe it. I'll share them later.
My criticism about the professional class being paid by the owning class to justify their wealth was specifically about orthodox economics, like the Chicago School who would literally construct studies to justify whatever you wanted if you paid for it. The yardsale model - that's a great link by the way, the graph that emerges perfectly mirrors our actual economy - is an example of heterodox economics, which largely stands in opposition to orthodox economics. The opener to that page is very well written. It'll do a better job than me.
Now, for an example of how completely divorced from reality orthodox economics is, the market convexity concept is perfect. The exceptions you mentioned about veblen and giffen goods aren't the main problem with convexity. The simple problem of inelastic demand is a much bigger problem. This is all couched in extremely obfuscating language, those articles are impenetrable to anyone who isn't steeped in economics language.
I assume you know what inelasticity is, it's something for which demand doesn't change with price, for instance things like shelter or food. So, to demystify the language, another term for "inelastic demand" is "need". Basically, if you read between the lines even slightly, the founding, econ 101, highschool level principle of orthodox economics has been forced to admit that it doesn't work for anything anybody actually needs. And then they go on insisting that this principle should govern our entire society. Got to keep that yardsale going.
Market convexity is an amalgamation of post-hoc justifications for why supply & demand is so hard to find in the real world. When I mentioned the perfectly straight, bisecting, perpendicular lines graph, you admitted that was just an illustration, and I agree, it is a doodle. I know it's now in vogue to use slightly curved lines, but that's just because economists are aware of how ridiculous the first illustration was and they put in just the slightest amount of extra effort to hide it.
When I'm asking for the science, let me ask you this: what data constructs the graph? Where did it originate? This is the question I've never had answered. Just literally the graph appearing in real world data, just one time.
See, when actual sciences want to "illustrate" a concept, sometimes they idealise, but they almost always have real data and real graphs to show. Their idealised lines pass through data points with error bars. Scientists work hard for their data, and they always, always show it off. Stress-strain curves, electron microscope images, star life-cycle data, red-shifting, animal population surveys, and on and on. Real data is complex and interesting and beautiful and scientists will show you their cool slide and say "you can see such-and-such feature here and this indicates...", it's great.
I have looked for the supply & demand version of this and can find nothing but hand-waving excuses.
Also, the convexity article talks about the Nobel Prize in Economics, which is wrongly named. It is the Nobel Memorial Prize. It was named after Nobel, because it's not a Nobel prize, because the Nobel prize committee rejected the economics category because it isn't a real science. Some Swiss bank then financed the wish.com version Nobel Memorial Prize in Economics.
I suspect this isn't so hard for you to accept since you've already come so far in your understanding of heterodox economics. You still seem to have some respect for the orthodox schools, which is strange when you understand so much of where they have led us.
As for the Epstein thing, I don't have any reason to believe that anything has changed. We know Epstein was part of the trafficking of minors, and absent any evidence about the state of that practice, the idea that removing two people from the network actually fundamentally altered anything seems hopelessly naive. I think the burden of proof lies on anyone who wants to claim the practice has been abolished.