Answer:
It helps to show that Ignatius had an unpleasant physical appearance.
Step-by-step explanation:
Ignatius is a peculiar character. He is not described as a great heartthrob, an admirable man or even as a handsome man, but he has an unpleasant physical appearance and a doubtful taste in fashion, in addition to behaving in an unconventional way. His physical appearance resumes when the narrator describes his head as a "fleshy balloon". However, all this strange appearance is very important in the development of the character and the story.