Why did the ghost of the Christmas future take Scrooge to the shops in the city?

Scrooge and the Ghost travel through a poor, run-down part of town. In a shop, several people divvy up some possessions they have plundered from a man who has recently died. Scrooge tells the Ghost that he sees his life might turn out like the dead man's. The scene changes and Scrooge is at the plundered bed of the corpse. Scrooge cannot bring himself to raise the veil of the dead man and see his face. Scrooge asks the Ghost to show him someone who has been emotionally affected by the man's death.