While I totally agree that technology and humanities are in no way mutually exclusive, the educational process provides a discipline to understanding the basis and history of the arts/culture/philosophy et al.
A few instances...
The Middle East, and the part that religion plays in the difficulties, is more easily understood, from formal study of comparitive religion... Not that it can't be learned, but foundational depth broadens the outlook.
Art- As we are surrounded by examples, everywhere, the learned ability to identify artists, schools of art, historical periods and the background of more cryptic styles, makes for great appreciation.
Music... Many, many hours of sitting in a lab with earphones on, "parsing" Beethoven's Fifth Symphony etc. , left me with mixed feelings... Now, I instinctively look for instrumentation, counterpoint, anacrusic 5 or thetic 4,
and try to frame the structure.
Not good... but doesn't apply to "Rap", so just old school.
Languages... Probably not very important unless one has involvement in different cultures, but on a personal basis, a matter for enjoyment. Just finished watching "Downfall", and enjoyed the movie, but only had to look at a few of the subtitles. Have had a ball in our Florida senior community, making friends and acting as interpreter for many foreign snowbirds, as almost all speak either French or German, no matter what their native language.
Philosophy and History... neither critical to lving in today's culture, but a wonderful background to my favorite hobby... "Being a Fly on the Wall of Evolving History".
So I DO agree that none of this is necessary, and all of it is there for free, for anyone to study, learn, or appreciate. Can I tell the difference between one who had a Liberal Arts background, or a person with a technical background?
Absolutely not!... Intelligence or dullness comes through without regard to Higher education specialization... and it really doesn't matter anyway.
Still, I hope that we can keep a balance in our system, and that the direct connection of income to education subsidy is not so complete as to harm the schools that were formerly considered to be "tops" in quality of education... ie, the US News Ratings.