If we are taking about standing to sue, we are talking civil lawsuits, not criminal law. This distinction sresolves many of your questions. Yes there are nuances, but in general I think it is a reasonable huristic.

If Mcdonalds raises the price of burgers, I have more costs, but that alone is not grounds to sue Mcdonalds.

If a burgler robs mcdonalds driving a price hike, that is not cause for a customer to sue the robber.