I'm not really sure that I agree with it that much, but, on the other hand, I do admire it for attempting to create a more positive image of the acquisition of wealth for Christians.
Yes because Christianity considered any sort of wealth a sin before prosperity theology came about...
No. However I do feel, at least in the 20th century, that a lot of Christians seem to have shifted to a position of decrying wealth as a generally dirty thing (and yes this obviously has a long-standing tradition within segments of many Christian denominations), whilst I am of the opinion that wealth, as long as it is used for moral purposes, is generally a good thing, and something that we should be thankful for.
Matthew 19:24? Or are you not a Christian?