alt Hacker NewsBut isn't that counter to the very article we're commenting on? Everyone is shoving half baked AI junk into everything because that's what makes number go up on the stock market, but I'm pretty sure that's not actually what most people would want those resources to be used for.
I'd posit that markets are completely detached from the real world and are more of a speculative/religious element than an indicator of any ground truths.
Edit: I just realized I missed a sentence of yours where you kinda spoke to this. I still believe that this is more of a rule than an exception - there is nothing inherently tying markets and reality together - they're mostly about people making bets on what the next big hype is; not on what is actually useful to anyone.
Most people or most people with money? Ultimately it's the people making investment decisions you need to convince in order to get the money from them. Then the reality check is whether you can give them that money back and more. Those investors should in theory be self-interested in making sure that this is actually useful, because if they don't they'll lose their money, but in practice they are not superhuman and prone to fads and echo-chambers (especially because it's a relatively smaller group that can move a lot of money around, and short-term investing rewards running with the crowd to some degree), but there's not a single group of people that would not fall victim to poor decisions in this regard (whether you're imagining a centrally managed economy, the electorate, or some hypothetical benevolent dictator).