I mean it's just a tax the business has to pay to the government, calculated based on products sold. Any business could conceivably do something similar with any tax if they wanted, e.g. add a "XYZ fee" that's added at the register to compensate for XYZ tax. (And in fact many businesses in the US do exactly this, listing each tax as an excuse to tack on arbitrary extra hidden fees at check-out!)

I think this also doubles as a political statement. Basically a subtle way to shift "blame" and make consumers feel upset about a tax, and more likely to put pressure on governments to reduce said taxes. Ultimately it's all anti-consumer.