Generally, most of us don't appreciate gestures committed out of goodwill if done on a regular basis & consequently after some time, we tend to feel that those offering humanity, are bound to do so always.
A sarcastic form of applause performed by lightly and rapidly clapping the fingers of one hand against the palm of the other, used to show indifference or disdain.
Which is why we should develop an awareness of gratitude, and express it to those who offer goodwill gestures. "You are very kind" is a good place to start.