What is the author's style in The House of Mirth by Edith Wharton?

Lily has a finer sensibility than those around her. While Lily often acts in accordance with the social mores of her class, her actions demonstrate a more stringent moral calling than any of the other people who populate her world. She refuses to give Bertha's love letters to Selden to make her way back into the social scene, even though Bertha's deceit is what leads to her ultimate ostracism. She insists on paying back Gus even though he deceived her as to what the "investments" were, and despite the fact that he gave her money so she would sleep with him—in essence, attempting to turn her into a prostitute.