"Income" is just a proxy for providing resources. It's simply unreasonable to assume that the Sentinelese men who are best at procuring food/resources/etc aren

"Income" is just a proxy for providing resources. It's simply unreasonable to assume that the Sentinelese men who are best at procuring food/resources/etc aren't more desirable than their peers. Social status is likely a factor as well. Authority is often derived in tribal cultures from being the best hunter/warrior, or being the son of the best fighter if the tribe has a monarchal structure of leadership transfer. Not that any of us know, because the Sentanalese will kill us on site as trespassers if we show up on their islands.