[Rimbaud]

And to augment SpM's point on that, it is not a particular criticism of Boromir that it is so. Of the Company, the Hobbits have an oft-discussed 'natural resistance', that although finite, was fairly evident. Aragorn is a special case, and 'less and more' of a man than Boromir, due to his lineage etc. Legolas and Gimli have a less natural desire for power than Boromir, so although perhaps the Dwarf would be subsumed by greed, it would be a different malaise to that which would have gripped the Gondorian. The Elves are written as possessing a greater 'moral fibre' in any case. In a way, I think the most dissent could come from the matter of Gandalf, who as a Maia one presumes would have had a strong resistance, that although it would eventually cave would hold out the longest... but think of his reaction in Bag End that once...

~Rim