The Enkidukai joined the Octarchy because it was of benefit to them, without the Octarchy Yliakum would be over-run by all sorts of bad stuff from the labrynths.
Unlike most other races, Enkidukai have maintained their own strong language, traditions, society, values, and laws. As far as I know they also still have their own judicial system, which is based in Ojaveda, for dealing with problems amongst themselves. Could be wrong there.