Imagine yourself as an ice cream maker. Everyday you go to the supermarket buying all the ingredients you need to make ice creams. You tested it on your friends and they said it was good. Every morning you make the ice creams so you can sell it at noon.
Everything went fine. You have a decent profit and everyone likes your ice cream. But one day, there’s this one person that bought your ice cream like everyone else, unless he would not eat your ice cream. He instead threw it to the ground, stomped it with his foot, and spat on it in front of you.
He paid for the same price like every other customers, but will you sell it to him the next day? What if he pays you double?
At this point we realize that there is more to our job than just the money.