Because if people read their bibles, they might start to start asking questions and the global powerhouse of control would weaken?
Man I sound like such a stinkin' conspiracy theorist these days. Curse you, cause and effect analysis!
Edit: I wanted to add something somewhat unrelated, but just some food for thought.
My dad died when I was 19, and he had the "whatever is cheaper" attitude, so he was cremated. I never got a chance to see the urn before ashes were scattered about. Mom used the money saved to blow on a new car, that she quickly sold and blew on another new car.
Yes, it's just a body, and yes, funeral plots are vastly overpriced. I just wanted to share my experience and decision and encourage others - don't decide how YOU want to be buried. What do you care? You'll be dead! Rather...ask your family members how THEY would want you disposed of...after all it'll be their money and they may or may not care to visit.