There's this verse in the Bible that, "What shall it profit a man to gain the whole world and lose his soul". I've seen a lot of Christians base on this verse and many other similar ones like it and conclude that it is wrong to have any riches and that since money is the root of all evil, we should refrain from riches.
I don't quite think it's so but just that as Children of God we shouldn't lose ourselves, our morals and our core values when we try to gain wealth. That's how many Christians should begin to see it as.