I was reading an article randomly about the changes happening with Uncle Ben's rice and Aunt Jemima. It also, talked about how the names came to be. Uncle Ben's used to be known as uncles Ben's plantation rice. This is why they want to change the name and not only becuase of the image and current name.
The titles uncle and aunt were given becuase they could not give them Mr or Mrs.
Why the thread?
I now believe it's the reason most black people generally when using english to describe an elder who is not a relative, we either use aunt or uncle instead of Mr and Mrs/Ms.
Down to slavery and colonial rule forced upon black people.
We as black people and other marginal groups have made the words bigger than the intended blood relative descriptor.