For that to work, what you need is for the nurses and carpenters to be well versed in basic economics and how pundits lie with statistics etc. for when they go to the polls, rather than to have an oversupply of English majors who go on to have careers as a Walmart greeter or become structurally unemployed.

In other words, we need more people with a minor in the humanities and fewer people with a major in it.

I can agree with that. You need everyone to be a thinker and some to be deeper thinkers.