Any washing you do to the produce at home has basically zero chance of killing/removing anything. It's hygiene theatre. People typically don't wash their produce in bleach or soap.
What are you basing this on? If I buy something like parsley and don't wash it then it tastes a bit like fly killer, but if I rinse it thoroughly then it doesn't. Is that just placebo?
That link makes my day and confirms so much I wondered about food cleanliness theater.
It's gross but I tend to leave a tiny bit of dirt on my potatoes. I think it's an emotional callback to your point that it might not be great for our food to be completely sterile.