I feel that Odysseus, like any person, can be a hero at some times and very selfish at other times. During the war in Troy, Odysseus was surely a hero, thinking smartly and protecting his men well. However, in books 9-12, Odysseus is definitely not playing the role of a hero among his crew. On almost any page you turn to in the book, you can find some act of selfishness coming from Odysseus.

When they were in the land of the kyklops, Odysseus refused to simply raid the cave and leave. He would rather have risked the lives of his men and stay to be foolish.

And then in book ten, while the men were on the island of Kirke, Odysseus was most unfaithful to his wife. He succumbed to the seduction of Kirke, and didn't have a second thought about it. If he had been thinking...