I'm assuming their age because of when Pivotal Labs was a thing, but there was a period from about the late 90s to the early 2010s where many people in the valley believed in an ideal of ascetic tech monks where we did this for the love of the work and not purely for status or money. It's not like those elements were ever wholly absent, but nominally egalitarian hierarchies weren't the weirdest things in hindsight.