Philanthropy.
It can apply to so many different situations...
Naturally my belief that selfish motives drive everything comes into play, however I won't go into that unless someone asks.
Etymology: Late Latin philanthropia, from Greek philanthrOpia, from philanthrOpos loving people, from phil- + anthrOpos human being
Date: circa 1623
1 : goodwill to fellowmen; especially : active effort to promote human welfare
This could be anything from giving a homeless person a dollar to taking care of drunk friends, from donating millions of dollars to charity to doing someone's laundry...
It's something that's going through my mind today for some reason.