"Piggy bore this with a sort of humble patience" --> avoiding conflict, mature response aligns with his intelligence, suggests Piggy has faced injustice before
Piggy's immediate mistreatment contributes to the broader themes of injustice and prejudice explored in human nature
Piggy's inability to stand up for himself may contribute to his sense of isolation as he withdraws rather than attempting to assert himself.
May also reflect the imbalance of power