What have you done to earn your keep?

It’s a lyric from a song. But I thought about it, and came to this:
If I add up all the time where I have shown an act of kindness, given money, lent a shoulder or an ear, how much time would that add up too? Whatever it would be, it wouldn’t be enough. Take out 8 hours a day for sleep, your are left with 16, have I even spent 1 hour, of added up minutes, of that doing something good for anyone? I need to earn my keep, will you?