Is It a Matter of Ritual Purity?

In chapter seven, we have this teaching of jesus where he talks about how the pharisees are watching him. They notice that his disciples do not wash their hands on coming from the market or wash your hands before they eat now. This is a mater of ritual purity - if it's good o for the priests, those who are serving in the temple of god, to purify themselves before they undertake these tasks,. That'd be great for us to do. But what people were doing back in the day is there a saying, well, here's what i've done, is whatever money i would have spent to take care of my parents, i'm dedicating that to