Shame on the top 4 for destroying more than they create. 
Except in the case of building solely with mob drops and wood, you
have to destroy more than you build. You have to mine resources to build with and on top of that, additional resources to build the tools to do your mining with (or anything else you may decide to craft). What's more, when you give someone else materials that you mined for him/her to build with, you get credited with destruction, while the other player gets credit for creation. That means that the five large chests of cobble that I provided for the Fenris are ~24,000 blocks destroyed that I won't be adding back into my creation total, unless I become heavily involved in that project.
Personally, I think Notch is a comic book supervillian, who is trying to convince us, at a subconscious level, that we must destroy the world in order to create his utopia.