My personal belief is that a name is the first prophecy a parent is given about their child (to those who don't believe in such things...don't bother arguing me on this BELIEF! It will only serve to make me think less of you!); my (severely limited) understanding of Middle Eastern culture is that names are similarly regarded as being sacred. Therefore, a Hebrew name could be construed as being offensive to Babylonians, and vice versa.
There are some cultures in the world where Christian converts from other faiths change their names. I suppose there's a similar thought there.
Good question.