[Student of War]

In my opinion the benefits of wearing the rings were "installed" just to get the bearers to use them. The sinister intentions of the rings is a separate power. Once slaves, the bearers would always be tied to the one ring and do its bidding even in death despite the location of the rings or who was bearing them. Sauron was also a slave to the one ring because as he made it he put more of himself in it than was left over. So each ring could have had its own mini story behind it but only the one ring was the stories focus.