Wow. Looks like Harvard's Class of 1906-ish was expected to understand and operate parts of the real-world economy. In America. How times have changed!
Very easy to give a fact-free hot take, but I thought I'd take a look at the "research" section of Harvard's economics department website at the moment[1] to see what they work on. I'm not an economist but it seems like a pretty serious attempt to understand the real-world economy. Picking a paper purely at random (again, I'm not an economist so I just clicked through a few and they seem similar-ish to me in a broad…
There's a difference between Harvard (or any powerful equivalent) the research establishment and Harvard the school for training America's new elite.
Most of the economics students I know (especially the Harvard ones) would not surprise the PC at all.
As a subject it doesn't attract particularly serious people.