It is a clear case of acting with entitlement and demeaning the person you are to engage with.
I think this point hits the nail on the head. Lady Hussey is part of the privileged, entitled, ruling class. It’s in her very DNA to regard many sectors of society as beneath her. She wouldn’t question the right or wrong of moving someone’s hair etc because, in her hierarchical view of life, the person is ‘lower than her’. Look at all the bowing, scraping and doffing of caps that goes on around the royals, even in 2022! This current event highlights the condescending behaviour of those with privilege - as well as being about skin colour & heritage it’s about the deeply ingrained classism that runs through UK society like a stick of bloody Blackpool rock!