I think it would be impossible to serve Sauron without eventually becoming his slave. Look at the Ringwraiths. They were mighty Kings of Men, but through the Nine Rings, they were corrupted, and enslaved as wraiths of their former selves. It is impossible to serve a Dark Lord without becoming his slave, I think Saruman learned that the hard way.
__________________
But Melkor also was there, and he came to the house of Fëanor, and there he slew Finwë King of the Noldor before his doors, and spilled the first blood in the Blessed Realm; for Finwë alone had not fled from the horror of the Dark.
|