It wouldn't happen. Not only do many of the top 100 have vendettas against each other, many are loyal to their friends who are in their tribe and may not be in the top 10
And in the end it all comes down to working together. A group of allstars doesn't always work as well as a team as a bunch of misfits (Yankees vs. Red Sox ALCS 2004 for example - look it up if you're not a baseball fan). The top 100 would are scattered all over the world and would have a lot of difficulty supporting each other and doing coop attacks, not to mention egotism issues and problems with players getting bored after 30-45 minutes of village demoing/growing/rebuilding everyday.
In a perfect world the top 100 would rape everyone else through sheer skill and numbers. This is not a perfect world and the top 100 do in fact sleep (some of them
) and anyway they would never be able to coordinate all of their villages well enough to bring their full potential to bear on the rest of the world.
A tribe of the top 100 would cause 1 of the following:
1: Everyone else gives up and deletes, the top 100 delete shortly after out of boredom
2: Everyone else (or at least everyone adjacent to a top 100 player) makes it a priority to destroy the top 100 players near them and many of the top 100 quit because they cba to do all that work, some will stay and fight, but the tribe will fail.
3: Super Huggling