Liberal arts teaches people to deal with the problems that cannot be solved with algorithms or engineering, nor yield to the precise objective methods of science - which is the vast majority of them in the world, including the most critical ones, and even in IT. In fact, algorithms, engineering, and science are all ultimately subordinate to the other issues - ultimately, they are products of human nature. Those are some of the same issues about which many tech leaders like to advertize brazen ignorance, never a sign of good judgment!
And not coincidentally, looking around our society, those are our biggest problems by far - we aren't suffering from a lack of algorithms (and other tech), we have far more than ever. Perhaps if more people at Facebook studied the humanities, they wouldn't make such obvious errors with their truly brilliant technologies - errors bizarrely elementary to people who understand these things. Technology is power, and power is orthogonal to good decisions and good outcomes. I suspect that the fact that the knowledge in humanities and social sciences conflicts with power - again, a bizarrely elementary situation - is why so many powerful people try to ridicule and destroy the reputation of liberal arts. I'm afraid that in IT they have too willing an audience - a population widely ignorant of and often uncomfortable with non-technical issues - and that we and the public have disarmed ourselves of all our protection againt the corruption of power and tyranny (many even celebrate corrupt personal power) - dropping our far superior weapons simply because the powerful pointed them and laughed.
I watched William Shakespeare's play Julius Caesar the other day. The issues of today were addressed brilliantly, and on a level no data could describe or express - one function of art going back to ancient Greece and probably through human history, to hold up a mirror. If more SV engineers would watch it and learn from that and the rest of the humanities, the world would be in much better hands. Heck, just studying Shakespeare would be a start.
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P.S. In employment, most well-paying jobs are outside IT and completely non-technical (if you can't think of any, you are a bit lost in the IT bubble). And more importantly, life is not all about work; there are more important things - wars aren't fought over job skills. Families aren't workplaces. Freedom in Hong Kong and peace in Ukraine aren't dependant on algorithms. Wages and markets, even, are dependant on politics.