Final answer:
The unifying feature of the Matai in Samoa is their traditional chief system role, holding social, political, and cultural influence and preserving Samoa's rich cultural heritage, which integrates both ancient customs and modern influences.
Step-by-step explanation:
A feature that unites the Matai of Samoa is their role within Samoan society. The Matai system is a traditional chief system where the Matai hold significant social, political, and cultural influence. They are responsible for the well-being of their family groups, the allocation of family resources, decision-making, and maintaining cultural heritage. This system is a central aspect of Samoan society and underscores the importance of community and respect for tradition.
Samoa's location south of the equator, about halfway between Hawaii and New Zealand, has contributed to a rich cultural tradition that includes the preservation of ancient customs alongside modern practices. Influences such as American music and societal trends have also been integrated into Samoan culture, especially due to migration between Samoa, Hawaii, and the US mainland.