So it took a little bit of digging and finding but here it is for those who believe that the Emblems the speaker sells. They do work Destiny just didn't want them known. Here is the list:
Emblems:
Blessing of IV - Higher drop chance from enemies on Mars (Cabal)
Blessing of the Ancients - Higher drop chance from Majors or Ultras
Blessing of the Gifted - Higher drop rate/cryptarch conversion chance
Blessing of the Joined - Higher drop chance when in a group
Blessing of the Knight - Higher drop chance from Hive
Blessing of the Sentinel - Higher drop chance from Vex
Blessing of the Skeptic - Higher loot chance on end game rolls
Blessing of the Speaker - Higher drop chance the higher Light level you are
Blessing of the Unmade - Chance for more drops from chests
Blessing of the Watcher - Higher chance of loot from end game rolls and chests
Blessing of the Zealot - Higher drop chance from The Fallen
Blessing of Worlds - Chance of more materials looted
Each emblem is specialized to something specific so that you would spend your Motes of light.