She doesn't even talk to any poor people though. Her father is the richest man in town, there are no farmers, tradesmen, or clerks that she even speaks to in the book let alone someone who is actually part of the bottom 90% of England's economy at the time. Even with Wickham when they first meet and she likes him, she flirts with him but knows nothing serious can ever happen since he doesn't have enough money and knows he will want to marry an heiress. In chapter 26 her aunt cautions her against falling in love with Wickham and she assures her aunt that while she enjoys his company she doesn't view him as marriage material.