The way I was thinking of it:
- The 'operations people' / 'workers' ('the competent' in the post I was replying to) are the actual work-doers who create the company's product or provide the company's services.
- The 'money people' are the people in financial and managerial positions who deal with money coming into and out of the company, and who make the financial decisions.
Usually the latter, who know how much people are paid and how much the company makes, take considerable pains to withhold this information from the former, who have specialist skills but are often not business savvy. This is because the company's profit comes from creating as large a gap as possible between the income that the company makes and the wages and other expenses that they pay.
In a small company this information is directly withheld from the staff, but they tend to have some idea. This is part of why small companies tend to either pay better than, or have smaller margins than, large companies.
In a large company, part of the purpose of middle management is to isolate the money people from the operations people so that the operations people don't find out how much they're actually worth to the company. If you find out that you're getting paid $100 to make $10,000 for the company, you're going to be pissed, and either demand a pay raise or leave.
Edit: To be clear, I don't mean to say that middle management are stupid, by any means. Part of their role is, however, ignorance (wilful or imposed, feigned or genuine) of the company's financials.