Wow, this turned into some nonsense. Payscales are not hard to work out, underpaying someone involves effort more than stupidity or accident.

The list of acts by some of these businesses includes coercing migrant workers to repay franchisees back in cash as tax withheld and threatening deportation if they spoke up. (company was informed of act multiple times but failed to act until fair work raided offices), straight up wage theft where a huge companies just inform staff to underpays people on purpose for as long as possible until they are caught (Woolies) or they have CEO's giving out bonuses for creative ways to remove entitlements from Enterprise Agreements as well as forcing delegates to agree to lower wages by threat (Grill'd). None of them were accidents, they all got caught and now the workers will get a percentage of the money owed to them repaid and the company will laugh it off as a failed ploy.

That's 3 big name companies that took years to bring to justice. Imagine how many more are just smarter at getting away with it?

But yeah, keep blaming the little guy for wanting to be paid appropriately and feeling sorry for this huge companies with 100s payroll workers checking through payroll paperwork to make sure it "complies" with a fairly simple to understand set of regulations.