Final answer:
Scrooge is left with an improved opinion of himself following the visit from the charity collectors because he sees the opportunity to do good and help those in need.
Step-by-step explanation:
Scrooge is left with an improved opinion of himself following the visit from the charity collectors because he sees the opportunity to do good and help those in need. The charity collectors remind Scrooge of his own selfishness and greed, and seeing their selflessness and compassion makes him realize the error of his ways. This change in his perspective leads to a transformation in his character and a desire to make amends for his past behavior.