I believe it's not fair to ask God for big miracles if we're not prepared to do our part in creating small ones.
Here is a chance to do something meaningful for someone you do not know, will never meet, might not like if you did meet him (who's to know?) and who will never have a chance to thank you.
You will gain nothing from this, and only a very tiny number of people will know about or acknowledge your kindness. It is a gift from you to God.
I can think of no better reason to do it.