Do what you can within all reason and honesty. We cannot be Cotton Mather's (look up Cotton Mather if you want to see extremism) but a due and honest effort can be mustered on ocassion, especially if the wrong is great and harm can be catastrophic.
btw...... Cotton Mather was the name of a band I was once part of. I am not an extremist except in my work in the futures market trading research. Stupid math. No one is perfect.