[Draten-Master of Fire and Ice]

I know that before he was the main bad dude in Middle Earth, Sauron was Melkor's right-hand-buttwipe, so this may explain some of your question. As to the Elvish smiths who created the three elf-rings, they were not under the control of Sauron at the time and the three were never spoiled by the power of Sauron. Unfortunately, and here is the problem, if Sauron were to recover the One Ring Rule Them All then everthing that was wrought with the three would be undone and the elves would be laid bare to the Enemy.