There will be blood

There will be blood is "A story about family, greed, religion, and oil, centered around a turn-of-the-century prospector in the early days of the [oil] business."
I did not expect much, so I was not really disappointed. The movie is certainly not interesting. It is basically story about greed only - in the movie, almost everybody is greedy, including a priest. The story would be significantly more interesting if there was at least one not greedy person. If the main message should be "Everybody is greedy", why do you want to spend more than 2 hours to make your point?