As a finance guy, always looking at financial statements, budgets, etc., "skewed distribution of wealth and income" never showed up for me.

Labor costs and related benefits made up 60% -70%.  Taxes, maintenance, legal, lease rents, transportation,  interest, and depreciation rounded out the the rest, with about 2 to 5% for the bottom-line.  

Embedded in those expenses are the compliance costs from regulations.  I would attribute the regs alone account for about 25% of total expenses.