I believe that when the Good Samaritan gave the coins to the Innkeeper he established that he would return to the Inn and pay whatever amount was necesary to cover the mans needs for his injuries.
This personnally tells me that when I help someone , that I need to be ready to pay whatever price that it takes to meet that need if possible. We are called to be Good Samaritans like Jesus was, and to set that example for others.That price may be money or it may be many ours praying and talking to the person.It may be shelter or clothing.
Whatever the need may be , when we help someone are we ready to tru0ly help and pay the price?
I hope that this was helpful to you David. God Bless You.