Earlier quoted context omitted.
Perhaps it is now, but it was not always the case. At the dawn of age of reason you would have certainly needed to be independently wealthy (upper class) in order to pursue purely intellectual activities. For a time, anti-intellectualism was perhaps not as prevalent within the working class. Education was seen as a way to better ones self, people tended allotment gardens and took part in sports and cultural activitie…
What I've seen (and mentioned in another comment) is that the upper classes view "education" to mean private liberal arts school, not math/computers/science. I think those are viewed as too hard to pursue if you don't have to and populated by non-rich people. That's definitely a generalization and not always the case but I've seen it a lot. I notice a sort of cognitive dissonance with them though. It's undeniable tha…
I don't think that it's about the difficulty of math/computers/science; it's about the goal of the degree. A liberal arts degree is not a vocational credential: it means that one has been taught to think (literally, the 'liberal arts' are those studies useful to a free man, not an employee). If you have a math or chemistry degree, that can still be upper-class so long as you're not intending to make your money in math or chemistry; it's when you had to study a subject so that you can afford to live that you mark yourself as not upper class.