The current "employee pricing" in the automobile industry shows that. You're also forgeting about the individuals Bob's Bakery hires (that would not increase productivity yet need to be included in costs) to be compliant to todays taxes.
Bob is a small company and he spends at most 0.5% of his sales revenue complying with the present code. His accountant is mainly concerned with paying bills, collecting invoices, writing payroll checks, and helping Bob with long-range planning of their new line of Low-Carb bagels. He will still need to do all these things.