[Gurthang]

I remember a discussion(I'll see if I can find it) that concluded that even if one could master the Ring, it would still end up on top. The will of the ring can only be destroyed by destroying the ring. Otherwise it would never stop pushing against its bearer's will. Even if the bearer was not completely consumed by the ring, as Gollum was, it would still have a strong influence, as in Bilbo's case. So as time goes on, the ring would have a stronger and stronger influence as the bearer's will becomes weaker. Finally the bearer's will would be mostly obedient to the ring.