Just to expand on David Faradatolo's post. The langalanga social structure then (pre religion) is likened to the govt set up of ministries. This well established social structure enabled its market economy(which is still used generally in majority of SI at present). Incidentally my folks hail from the ministries of transport and music and arts. they built the first local langalanga boats and I have proud history to incredible musical talent that can still be traced forward to some famous names in the SI music industry past and present.