Now it's 100% about the money - just look at what is being funded. Almost no real "tech" companies - just a bunch of folks writing slightly different variations on how to sell ads. I have to try to keep a straight face when I have some obviously-way-more-talented-than-me engineer telling me about some silly worthless app they are working on. It obviously does not move humanity forward or progress the art of their profession in any way - it's just a lottery ticket people have deluded themselves into thinking they are "making the world a better place".
The change in tech startups has been extremely sad for me to watch. What used to be inspiring is essentially now one step removed from fraudulent.
This take is not completely fair - there are a lot of startups also doing interesting things - but it's closer to reality than not - and nothing like what you envisioned as a "startup" even just before the dot com era.
University campuses typically have everywhere you'll need to go within a compact walkable envelope, and you can generally live within a short walk of one of the edges. The grad students are coming out ahead, in my view, since they don't have to contend with flaky and crowded transit.
If startup employees are being greedy, they're doing an exceptionally poor job of it. They would enjoy much cushier lives as, say, mechanical engineers and accountants in the Midwest.