One of the fundamental principles in cybersecurity is to apply necessary controls to reduce business impact. Business value is the catalyst in the risk management.
The cyber poker machine is chosen as an illustration here. If this cyber application is deployed in a casino, the bet outcome means money. The result of each bet must be protected against manipulation like session replay, unauthenticated or fraudulent submission to control the coins release valve.
But if it is deployed as part of the entertainment system in an aircraft, then it doesn’t matter. The bet outcome is just for fun.