Life’s meaning
What is life's meaning without the ones that you care for? Can you leave a life without love and care?
Well, I know people who don't have a child or an immediate family to care for. But they have to care for someone, apart from themselves. So, they donate money(that’s what they have accumulated), either to close relative or for some charity that cares for humanity.
Money is another medium to express love and affection, and do not fall in love with it! There are many better medium to express love and affection, and live a meaningful life.