You know I'm starting to realize that Galadriel & Saruman are pretty similar, in one way or another:
-Both desired the one - One failed
-Both were tempted by Sauron - One failed
-Both established mental communication with Sauron, but she bloecked her thoughts, Saruman couldnt and got raped.
-Both dress in white (duh)
-[In movies] both use white shockwaves to defend or attack.
-In book Galadriel was powerful vs structures - In hobbit movies Sarumans shockwave seems to destroy small parts of a building.
I hope for Hero sub mod to hear our plea hahahaha
Yes, they are pretty similar yet different analogies
Probably, the display of their powers in BOTFA symbolises the usage of Magic in its pure state, as both Galadriel and Saruman don't fight with swords, like Elrond and even Gandalf do for instance
Anyway, I think that the analogy concerning the desire of the One Ring is a little bit more complicated.
Galadriel desires the One Ring as well, but not because of the One Ring itself, knowing and understanding very well the evil nature of Sauron and his treacherous snares, and being more than aware of the consequences of her hypothetical acceptance of this terrible artefact.
The Desire of Galadriel is the Ambition of Power itself and Authority in Middle Earth (never, though, with violence or malicious intentions), a constant trait of her Life since her Exile in Middle Earth from the Blessed Realm; and, in the Third Age, the One Ring obviously and exactly represents the only tool to achieve the absolute Power.
Saruman, instead, has always been obsessed with the One Ring itself, and with the lost Art of the creation of the Rings of Power.
He thoroughly desires it, and he's not completely aware of the possible consequences that might follow; that's why he was entranced easily and deceived by Sauron, being unwillingly used as a puppet, to keep at bay Rohan and the other Western People for some time, while Sauron was preparing his forces in Mordor (the interpretation of the LOTR trilogy shows Saruman as willingly controlled by Sauron, even though there are subtle hints about the 'secret desire' of the White Wizard).