I don't believe she's necessarily calling for the hiring of humanities grads.
What would help, as a start, is an appreciation for the values (and value) of the humanities.
On HN specifically, you frequently see something akin to Schadenfreude when referring to students of the liberal arts serving fries to tech grads. That is to some degree just factually wrong, considering many liberal arts undergrads go on to rather lucrative careers in law, or powerful careers in politics.
But it is also short-sighted, because history has always been a two-step process, with technology enabling us to do new things, and other disciplines enabling us to use these capabilities for something resembling the "common good".
I always like this thought experiment: Would you rather live in a world with the middle age's social/political/law system and today's technology–or the other way around?
This doesn't mean that social and political progress are the exclusive domain of those who studied greek mythology. In fact, this article explicitly argues that it shouldn't be: Hackers should engage with that community.
But what it does take is, sometimes, a bit of humility. Too often, I feel the tech community is looking at technological solutions to social and political problems. See cryptocurrencies, or the encryption debate as examples where you can feel cynicism, bordering on disdain, for the political process.
The problem with that is, first, that it's wrong: a lot of power rests in politics, and China is a living example that the internet community is currently unable to win a direct confrontation with the power of the state. It is also wrong in that it portraits all governments as equally bad, all laws as subject to changed or broken when expedient, when clearly there are differences in the rule of law between countries, and there are differences in the willingness of politicians to act with integrity.
Secondly, using technology to create facts is somewhat undemocratic in itself. The Federal Reserve may be committing all sorts of errors. But it is hard to deny that derives legitimacy through a transparent, tested, process much more democratic than bitcoin. It is also an illusion to suggest that bitcoin is free of ideology, only because that ideology takes the form of an algorithm decided in the past, ticking away with almost no method to influence it.