This is preferable. I wouldn't trust a cashier to detect fraud in any trustworthy rate. That wording in the guideline is important. Suspicion of fraud is not fraud. Acting upon employee suspicion would just skyrocket costumer outbursts and complaints.
Isnt the entire amazon marketplace doing the same? Marking up cheap white label alibaba products by a couple 100%s and selling it to americans?. And then bragging about making millions with "dropshipping"
How many people have died in movies?! I'd guess it is negligible. People have died during theater performances. And it doesn't get safer than a theater.