Very true
, but Saruman could have the same plans as Galadriel or Elrond. Once owning the ring, taking it summoning a GOOD enough army to be able to overthrow Sauron. As for me, I think his arrogance wouldn't have done that. He saw himself able to wield the ring, and would have tried to take on Sauron, of course utterly failing. But that's my opinion.