Thank you for the information about Cristian Totti.
I am sure that people in Italy know more about how famous Ms. Brandi's is than I do.
But remember that a celebrity doesn't have to have popularity in the sense of people liking them for there to be an effect on what people name their children. A lot of publicity is enough, even if it would seem to be bad publicity.
Many people who are inspired to give a name to their children because of seeing a name in the media aren't naming their kids "after" the celebrities in the sense of honoring them. They just have discovered a name that they like through the publicity given the celebrity.