I once met a man in a pub who was quite drunk, and he kept saying "It's nice to be nice." We laughed at him and then with him...but what keeps coming to my mind is the fact that of all the things I have heard drunks say all over the world, this one is the most memorable to me. I tell you this in reference to #9 on your list re: kindness.
Yes, It's nice to be nice.