Having worked for both, I would say that most government offices are eternal, whereas private companies can vanish quickly. Sometimes without warning. Its really hard to kill a government office.
Makes me wonder, how did a necessary office survive during a junta or an overthrow? For example, how did the office of a postal clerk change from 1925 to 1955 in, say, Berlin? How does the average Salvadoran DMV worker view the changes in El Salvador since 1980?
How was a tax office run in ancient Babylon versus a modern one today?
I bet there’s some weird insights into human civilization to be found in those stories.