Clearly this is a very subjective question, and I am assume you are refering to the excellent BBC TV series starring Jennifer Ehle and Colin Firth. Well, I must admit I thought that this TV series was brilliant in its depiction of Wickham as the attractive man who takes everybody in. For me, watching a good TV series or a film is much more powerful than reading a book in terms of the visual presentation of characters, so in a sense, we as the audience are taken in by Wickham as well, and thus when we discover his deceit it makes us angrier with him than in the book. Certainly the visual images that accompany Darcy's narration of his deceit add extra impact to it, as we see Wickham manipulating Georgiana Darcy and the disolute lifestyle that he lives in Cambridge. These all serve to add another element to his deceit and this is one that makes us angrier at him.