Still, I'm curious as to why maintaining current culture is seen as important. Is there a loss of productivity / profitability associated with the non-transmission of culture?
As much as it can be corporate BS, I do think there are companies that have a culture that gives them an edge over the competition.
I worked at one place where the culture was very much about treating everyone as valuable contributors regardless of level, and pretty much every Friday you could chat with the CEO (and most of the VPs) over beers if you felt like it. As a junior it made a huge difference in how much mental energy I put into innovating and helping others succeed. Just as an example, I could see that kind of thing being hard to maintain in a remote context with thousands of employees.