Dollar-stores overcharge customers while promising low prices

In Australia, according to the Australian Competition and Consumer Commission:

- Businesses must communicate clear and accurate prices prior to consumers booking, ordering or purchasing. They must not mislead consumers about their prices.

- There are specific laws about how businesses must display their prices.

- Businesses must display a total price that includes taxes, duties and all unavoidable or pre-selected extra fees.

- If a business charges a surcharge for card payments, weekends or public holidays, it must follow the rules about displaying the surcharge.

- If more than one price is displayed for an item, the business must charge the lowest price, or stop selling the item until the price is corrected.

In practice, if the checkout price is more than listed price, many retailers give the item for free. It doesn’t stop dodgy constantly fluctuating ‘on sale’ pricing…

https://www.accc.gov.au/business/pricing/price-displays

Requirements about surcharge notifications and displaying all-up prices are nice, but the gap here will still be about enforcement and not regulation. The core problem for dollar-store shoppers in the US is about getting the retailers to honor the sticker price, not whether the sticker price shows all state and local taxes.

Is the Australian shopper protected simply by a stronger culture of adherence amongst retailers or is it because regulators inspect more often and take stronger action against failures?