Books do furnish a room

Just joined the site (yesterday) and by coincidence Vanity Fair is one of the books I am reading at the moment.It's a book I've been meaning to read for years and my first by Thackeray. About 200 pages in and wishing Amelia would get a backbone and recognise a good thing (Dobbin), but social mores are working against her. The one character flouting social conventions is the one we dislike because she is so manipulative. Does anyone think this is deliberate? I suspect that Thackeray secretly quite likes Becky; I may be wrong; not reached the end yet.