Comment by s1artibartfast

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.