Social class and status are central themes in 'Pride and Prejudice' by Jane Austen, and they play a significant role in shaping the lives and decisions of the characters. 

1. Rigid Social Hierarchy:

The novel is set in early 19th-century England, a time when society was deeply stratified based on social class and wealth. At the top were the aristocracy and landed gentry, while lower classes had limited opportunities for advancement.

The Bennet family occupies a lower rung on the social ladder, as they lack significant wealth and connections. Their lower status influences their marriage prospects and their interactions with higher-ranking families.

2. Marriage as a Social Climbing Strategy:

The importance of marrying well is a recurring theme. Many characters, including Mrs. Bennet and Mr. Collins, are fixated on finding suitable matches to improve their social standing.

Charlotte Lucas's pragmatic decision to marry Mr. Collins, despite his lack of personal appeal, illustrates the idea of using marriage as a means of social ascent.

3. Financial Security and Social Status:

Financial considerations often dictate marriage choices. For example, Mr. Darcy's initial objections to Bingley's relationship with Jane Bennet stem from his belief that Jane lacks sufficient wealth and connections.

The entailment of Mr. Bennet's estate to a male heir, Mr. Collins, creates a sense of urgency for the Bennet daughters to secure advantageous marriages to avoid financial destitution.

4. Class Distinctions and Prejudice:

The novel explores the prejudice that arises from class distinctions. Mr. Darcy initially looks down upon the Bennet family due to their lower social status, and he struggles to overcome his own pride.

Elizabeth, too, is initially prejudiced against Mr. Darcy because of his perceived arrogance and condescension.

5. Social Critique:

Austen uses the novel to critique the superficiality of a society that places such importance on social class and status. She satirizes characters like Lady Catherine de Bourgh, who believe that their noble lineage entitles them to superiority.

Mr. Collins, with his obsequiousness and willingness to marry for social advancement, is a satirical representation of the social climbers of the time.

6. Love Transcending Class Barriers:

The central love story between Elizabeth Bennet and Mr. Darcy challenges the idea that social class should be the primary consideration in marriage. Their eventual union symbolizes the triumph of true love over societal norms and class prejudices.

Jane Bennet's relationship with Mr. Bingley also highlights the possibility of love bridging class gaps.

7. Personal Growth and Change:

Mr. Darcy's transformation from a proud and judgmental aristocrat into a more humble and self-aware man is a significant subplot. His willingness to marry Elizabeth despite her lower social status demonstrates his personal growth.

Similarly, Elizabeth's evolving perspective on Mr. Darcy and her recognition of his true character indicate her own growth and maturation.

8. Independent Female Characters:

Elizabeth Bennet stands out as an independent and intelligent woman who values her autonomy and principles. Her refusal to marry Mr. Collins and her eventual choice of Mr. Darcy are guided by her personal values rather than societal pressures.

In 'Pride and Prejudice,' Jane Austen provides a nuanced exploration of the theme of social class and status, illustrating how these factors shape characters' lives and decisions while also critiquing the superficiality and prejudices associated with class distinctions. The novel ultimately advocates for the importance of love, personal integrity, and character over social standing.