> few readers here will have been at the poverty line, where it might appear a little more ambiguous whether taking a small cut from a very successful business which pays minimum wage is so clearly immoral.

WalterBright's comment indicates some confusion with this, so I'll help explain.

There's a basic notion of fairness that what you've contracted to do (your job) in return for money (your wages) is fair. But a lot of people don't see minimum wage as a fair wage: it's simply better than no wage. As such, in the context of a business whose payroll policy is perceived as unfair, then the notion of "what's fair" begins to tolerate theft: what you're being paid for isn't fair, so you're making it fair by stealing.

I don't agree with this, but I do understand it.