duty vs. loyalty

His samurai films like 'Ran' and 'Seven Samurai' consistently explore the tension between personal loyalty to leaders and the moral duty to protect the innocent.

His crime thrillers ('Heat', 'Collateral', 'The Insider') obsessively examine protagonists torn between professional duty and personal loyalties to family and colleagues.

His intimate family dramas ('Shoplifters', 'Broker') delicately probe how familial loyalty can conflict with societal duty and moral responsibility.