Confusion in "Great Expectations"

In this weeks reading assignment I did not comprehend most of the dinner conversation on Christmas. It was all very rude and condescending towards Pip, but I did not get all of the "pig" references. How were they making the comparison between the two? How is that suppose to relate to anything? Any explanation on this would be appreciated!

Mr. Pumblechook says, "Think what you've got to be grateful for.  If you'd been born a squeaker..."
"He was, if ever a child was," said Mrs. Joe.
Joe gave me some more gravy. 
"Well, I mean a four-footed squeaker," said Mr. Pumblechook.  "If you had been born such, would you have been here now?  Not you..."
"Unless in that form" said Mr. Wopsle, nodding towards the dish. (Pages 24-27)

Group Essay Collaboration

    (My paragraph) Next, following his aunt, Algernon Moncrieff uses marriage as a fashion statement and a way to move up the social ladder by abusing Aesthetic Principles. Algernon clearly voices his opinion on how important beauty is, so marrying a beautiful woman is a top priority for him. During a conversation with Jack he says,”The only way to treat a woman is to make to love to her if she is pretty and to someone else if she is plain.” In Algernon's social circle beauty gets you power and status. By marrying an ugly woman, Algernon would not be looked upon in the same way. As Algernon falls for Cecily, she tells him that looks are not important. Arguing her statement he says,”They are a snare every sensible man would like to be caught in.” “They” referring to beautiful women. Without Cecily's charming looks, she would be nothing to him. Algernon is not using the principle “beauty for beauty's sake” the way it was intended to be used. He is going to marry Cecily just to show her off like a possession. Before proposing to Cecily, Algernon says,”Cecily ever since I first looked upon your wonderful and incomparable beauty, I have dared to love you wildly, passionately, devotedly, hopelessly.” Saying this proves that Algernon only cares about appearances. He doesn't even know her as a person, but marrying a pretty woman will make him look better and more accomplished. Algernon seriously twisted a key Aesthetic principle. Wilde shows how people use the influence of language through the Aesthetic principle “beauty for beauty's sake” to manipulate each other through marriage ad social relationships.

          Above is my paragraph. I have changed a lot in it. I changed my second concrete detail to fit with the key aesthetic principle. I think my cmmentary fits in pretty well with our thesis, but if you think I should revise anything just let me know! We all have different characters, so we definietly shouldn't have any problems with repetition. Do you think I used the aesthetic principle too many times? If so, how should I reword that? Do you think my transitions between concrete details are defined enough, or should I work on those?