We've been in a bubble so long that there were people who have worked only in the current tech bubble. People run companies now that think a stock market crashes ultimately means more money flows in from VCs. I once worked for a c-level that seriously thought he had discovered something amazing when he realized that a company that made more than it cost to run the business had unlimited runway... the very idea that a company could run without constantly running to investors begging for more cash was completely foreign to him.
This has been the consequence of increasingly cheap money and investor money having nowhere to go after the real estate crash in 2008. To be fair, if money is basically free then it does make sense to grow without worrying about a profit. If you've had an entire career without every having to worry about more investor money coming it, it would start to seem wasteful to not spend it all.
But that's why these current economic conditions have me very worried: money can't be cheap anymore. If interest rates continue to rise we'll see a massive contraction in tech. First it will be the smaller, direct to consumer startups, then it will be all of the companies that have those startups as a non-trivial portion of their revenue.