I think there is also another issue on top of that - once you establish yourself as a big money maker (a part of FAANG), a lot of tech people start treating a position there as a way to pad resume or make a ton of money. I am convinced it will shift the culture inside the company towards more corporate mindset.
I think this is really the issue. When I was in graduate school, I was in a group for some project. Before class had started, I was showing off another group member some little personal thing I had worked on over the weekend, some game or demo or something. The third group member, having seen this, was shocked that I was spending my spare time programming things for fun. I recall being perplexed by this, as it was pretty much the whole reason I was in the degree. She responded she was only interested in software engineering for the money.
It's not necessarily a bad thing to structure your career around financial success, but I met many people like her who were attempting to get jobs at Google or Amazon just to cash in as much as they could for a few years, then bounce. At some point your company is bound to become filled with people like this.
You bring up a good point, and it elicits the question:
Once a company is overwhelmingly infested with folks who are cashing-in-till-they-bounce, should you stick around anyway, even though that'll hurt your career?
