A Wizard's Errand

[Gurthang]

I was glancing through the description of Gandalf on the home page of the Downs, and I noticed this at the bottom:

Gandalf was the only one of the five wizards who remained true to his mission.

I don't agree with this statement. Or at least there is not sufficient evidence to say it is true or not.

Here's what we know about the Istari's choices:

• Gandalf--Stayed with his task, through betrayal and death, and saw it to completion.
  
  
• Saruman--Obviously, denied his assignment and set out on a path to gain power.
  
  
• Radagast--Befriended the birds and the beasts of Middle-Earth. He seemed to neither give up nor further his purpose.
  
  
• Morinehtar and Romestamo--Not much is known about the Blue Wizards, but here is a quote from HoME XII that Legolas originally posted:
  
  

  But the other two Istari were sent for a different purpose. Morinehtar and Romestamo. Darkness-slayer and East-helper. Their task was to circumvent Sauron: to bring help to the few tribes of Men that had rebelled from Melkor-worship, to stir up rebellion ... and after his first fall to search out his hiding (in which they failed) and to cause [? dissension and disarray] among the dark East ... They must have had very great influence on the history of the Second Age and Third Age in weakening and disarraying the forces of East ... who would both in the Second Age and Third Age otherwise have ... outnumbered the West.

So Gandalf and Saruman made definite decisions. But did the others really forsake the reason they were sent?

I, for one, don't really think so.