Dickens uses the later two by telling the story through Pip's eyes. Most of the charactors names are ironic. It is found to be a sham that Miss Haversham has wealth.
Situational irony is woven throughout the novel.
It is ironic that the pale strange boy that Pip boxes at Havershams' becomes his room-mate and best friend. It is ironic that Haversham is poor. The name Satis is ironic and its use explained in the book. It is ironic that the convict is rich. It is ironic that a rusted leg-cuff leads the charactors and reader away from the real murderer Orick.