“How can we justify purchasing a second shirt with money that can be sent to a homeless family in Japan?”
This seems a bit extreme.
You have to be levelheaded and realistic. There is always going to be someone somewhere suffering. If you are honest with yourself that you are a charitable person and that you genuinely care about the world community and you do what you can when you can, I don’t think the burden of guilt is yours to carry around that you aren’t doing enough.
Everyone has their own definition of what is considered ‘doing enough’ but that is for each individual to decide.
(Wolf, nice to see you on the logical side of the argument 😉