Let's start with a controversial real world example.
In the 1930s, the woes of Germany and the oppressive demands placed upon it by the Treaty of Versailles means that a new radical war veteran with an economic plan for Germany's future comes to power;
Adolf Hitler.
He decides that there needs to be a purging of an ethnic minority within his country, and effectively declares war on the Jews within his borders.
Doing that took a lot of record keeping. Look up a book; IBM and the HolocaustIBM and the Holocaust. This goes into some detail about how this company that was later to become famous for its computer technology offered new cutting edge tabulation systems to the Germans to deliver on their goals.
This is not an IBM-bashing exercise by the way; I'm not going to get into how much (or how little) IBM knew of Germany's intent and what systems actually changed hands etc. That's not the point of this answer.
The point is that even the complete horrors of something like a holocaust has to be administered. Records were kept and maintained. Existing property that was owned by Jews was appropriated and redeployed for the use of others. This involves administration, either by computer or other methods. After all, complete destruction is never the end goal, even in total occupation scenarios.
More recently, have you ever seen the budget materials put out by Islamic State in some of their controlled regions? They openly tell you how much property was in essence stolen from people unaligned with their goals from within their borders and it's actually written into their budgets as income for things like roads, sanitation and the like.
Whether we like it or not, even the most horrific and destructive intent can't be realised without the paperwork being complete.