These micro-examples are a reminder that corruption is a part of every human system, no matter how perfect the design.
There will always be concertgoers cutting the unwatched fence to sneak in for free.
The only plausible solution is elective transparency. Either your company and financial metadata are available for independent third party review, and records retained as defined, or else you’re not a company.
Don’t ascribe to it, get boycotted.