It may not be consciously built towards this purpose, but HN serves primarily to spread the silicon valley, get-rich quick, startup business, and entrepreneur culture among software engineers and other technology experts.
YC and other VCs can't continue to exist if people don't continue to believe in the mythology of silicon valley. Who the hell will work ridiculous hours and gamble with their livelihood to make some worthless app? All in exchange for equity worth less than lottery tickets.