Right
责 supplies the sound — zé shifted to zì, the regular drift in this phonetic family.
责 itself stacks
主 (master) over
贝 (money) for 'demand payment'; the meaning doesn't carry. Same phonetic in
债 (debt),
啧 (click of tongue),
帻 (head-cloth). The common compounds
油渍 (oil stain),
血渍 (blood stain),
腌渍 (to pickle) all live on the absorbing-liquid sense.