Not cool bro.
All men were swayed thus by the power of the Ring, even Aragorn himself. Even Isildur was doomed by it. Boromir was all that a man could strive to be - a leader, brave, courageous, strong. A warlord, a captain. But as he exemplified all that made man great, he also exemplified all that made men weak - a lust for power, and tendency to be swayed by the Dark Lord.
Boromir was a mighty man. Ill luck befell him and his errand. Ever may they look westward, and never shall he return homeward! Alas for the fair captain!
As a sidenote, does anyone else love how Faramir is a perfect foil to Boromir, exemplifying little of what made men mighty, yet caring, compassionate, and even more humane? I loved Jackson for including that clip where he wondered if the dead Haradrim boy was really so evil afterwards. Boromir exemplifies human values, whereas Faramir exemplifies the goodness in humanity itself.
He fucking deserved dat Rohirric ass after everything was over.