Lord Goring marries Robert 's sister Mabel , Mrs. Chevely is outsmarted .
Lady Chiltern retains Mrs. 's 's Mrs. 's Chevely 's sister 's her husband 's honour and ' idealism ' .
Lord Goring marries Robert 's sister Mabel , Mrs. Chevely is outsmarted , and Lady Chiltern retains her faith in her husband 's honour and ' idealism ' .