It costs a few million to create an endowed chair, and these funds can only be used to help offset salary costs for that professor (thus helping with the budget for the department) and for research associated with that professor. You can't just use all of the money in these endowed chairs for other things that people in this thread are suggesting, it's not fungible.
You know, folks on HN often re-post links to Chesterton's Fence (https://en.wikipedia.org/wiki/G._K._Chesterton#Chesterton's_...), about trying to understand how things are done and why, before tearing things down and potentially causing more problems. I'd highly suggest the folks in this thread that are exhibiting a lot of anger about academia keep Chesterton's Fence in mind. Yes, academia has problems (as do all human institutions and organizations), but the amount of good academia offers is quite vast in terms of advances in science, arts, education, public discourse, startups, and more.