Selective enforcement even of an just law (or contract clause) is itself unjust. That's what the article's about - not that 7-11 is trying to enforce the rules,

Selective enforcement even of an just law (or contract clause) is itself unjust. That's what the article's about - not that 7-11 is trying to enforce the rules, but that they are selectively enforcing against certain franchisees, and using taxpayer-funded muscle to do it. Imagine if use of work computers for anything personal was a widely violated rule where you work, but the only people who ever seemed to get busted were the ones who had made complaints to HR, and they brought in the FBI to do it in the most intimidating and humiliating way possible. But hey, they did wrong, so the company's morally right? No.