Omg you people don't understand the character of Samwise. The reason he was able to resist the ring is because he already knew of something much more powerful than the ring; friendship, love, and loyalty. Part of the draw of the ring is the belief that the ring is the ultimate powerful force in the world.

Hell, based on that the damned thing tempted people who never even touched it (Boromir?)

Sam Gamgee is probably the baddest of asses.