The trickle-down wealth transfer goes like this: Federal Reserve -> Banks -> Traditional Businesses (who do the hard work of actually providing goods and services people need) -> B2B SaaS that sells them software to replace spreadsheets.
True inventors and innovators tend to be eccentric and purpose-driven rather than money-driven. That is actually a negative signal for YC. They want the slick grifters, popular kids, who can wine and dine clueless execs at "enterprises" to sell them chat apps like Slack at $100/seat. Much easier and faster way to get investor ROI than pie-in-the-sky "innovation".