In the quoted context I'd agree it isn't a great use. However I do think it's something worth knowing about.

Another economic topic would perhaps be marginalism, so we don't keep getting flooded with "but why is water cheaper than diamonds, it must be injustice/bad values/conspiracy".

And perhaps some kind of history of thought on value, so we don't get the simple version of labour theory, or the Fisher-Price version of utility theory again and again.

Perhaps I sound like a snob, but I find a lot of economic discussions are derailed by having to clear up confusions that appear repeatedly.