How is Scrooge affected by seeing the Cratchits in A Christmas Carol?

At the
beginning of the story, Bob Cratchit is not real to Scrooge as a flesh-and-blood human being. He
regards Cratchit merely as an expense and resents having to pay his miserable wages. He
particularly resents having to pay him for the day off at Christmas, seeing it as a swindle. He
knows and cares nothing about Cratchit's life and family. 

By the time the
Ghost of Christmas Present takes Scrooge to see the Cratchit family celebrating their meager
Christmas, Scrooge's heart has begun to be softened. This is because of his visit to the
Fezziwig's Christmas celebration of years gone by with the Ghost of Christmas Past. Now, when
Scrooge sees the Crachits in their own home, they start to become real people to him. Scrooge
sees the family make much of a simple goose for dinner. He begins to care about them, especially
poor Tiny Tim, who can't get medical treatments because of how little Scrooge pays his father.
He watches as Bob Cratchit takes Tiny Tim's

. . .
withered little hand in...