In most companies I've worked, approval process is the scar tissue of years of mistakes. In every case where you need to ask for approval to do something, you can probably trace back in the company's history and find the past mistake that some goofball made that necessitated getting approval to do something like that. Someone got us sued. Someone lost us some money. We need to take some kind of corrective action and…
When the decision is in the domain of the actor, you should make it your organization's goal that though computers, policy documents, or documentation process that they can try to make the decision without outside human intervention. Outside of very unusual requests, escalation up management or other stakeholders shouldn't even be required.
Places where I've seen pushback on actually documenting these choices have usually fallen into one of two camps:
- too much approval required for just about anything, to document it is to admit they have a problem and would take a long long time (hint: this is a lot of engineering groups).
- making the policies public would be embarrassing to management in some form (prejudice, illogical, half-baked, etc).
Both of these are "fish rots from the head first" type of problems, and unfortunately I haven't seen good ways for people down the ladder to fix them.