When I was 17 I worked [production] in a sofa factory that made huge profit. They hired every highly specialized consultant available. I asked one of the consultants and some office folk for an explanation (I was paid 3 guilders or so per hours ($1.5)) To my surprise both the consultant and the office folk thought it was a fascinating question and explained elaborately how [to them] it was worth every penny to have written proof for every business process. Investors could point at anything and get a pile of reports explaining exactly why the chosen method was the right one.

(When I left they continued to pay me for months. It struck me just now that cheap employees probably looked great on paper.)