Yeah, just because you've been dead for hundreds of years doesn't entitle you to any less dignity. Some countries might not agree, though. I know that in some countries your gravesite is rented, and when the family stops paying you get uprooted and thrown in a pit. Thank you Bizarre magazine!
And I don't buy the DNA argument. After that length of time there won't be much left, and since when can you reconstruct a face based on DNA? I know it can be done using skull fragments, but not DNA, unless someone wants to correct me
I see no particular mystery around the Mona Lisa's smile, either. The first time I ever got a good look at that painting, it seemed to me Leonardo was trying to depict the radiance of a pregnant woman and succeeded. You can tell by the way her hands rest on her bump.
Stock answer to most forum questions: Some do, Some don't