DC Madam and Emperor Club cases

What is up with the so-called DC Madam – aka Deborah Jeane Palfrey – case? Is the stunning contrast between the lid being kept on the names of male clients in this matter and the interest of the media compared to the speed with which Eliot Spitzer name became notorious in a similar DC case significant? One guess as to why the DC Madam client list is being handled so gingerly: the appearance on it of too many good news sources not to mention the possibility of a few well-known, media types as well.