for the sake of a few pounds
(in order to save or not spend some money)为了区区几镑钱
(to benefit sth)+ one's health, wellbeing, sanity为了利于
He gave up smoking for the sake of his health.为了健康, 他戒了烟。
I resigned from my job for the sake of my sanity.为了精神健康, 我辞职了。