I think people are caught up with Olivia's beauty and great style and want to be blind to her faults. While certain aspects of the City are staged like the jobs and location shoots, everyone on the show --even Olivia -- has said there is no script so the things they do and say are of their own accord. Her true personality is on display on The City- she is quite entitled,lazy and rude for the most part. It is naive to think that Olivia's behavior with writers during appearances and magazine interviews-- where celebrities are typically on their best behavior-- is more representative of Olivia than her actual behavior on television.
None of that negates that Olivia is very beautiful and has a much better clue about fashion than Whitney. She is certainly more entertaining on the City than Whitney.
I think statement necklaces are very last season. She should have released her line last year.