

Your argument is purely semantic and not really substantive unless you define what a “bad person” is. That’ll be different to everyone, so without a common operating definition of a “bad person” your point, while technically true, doesn’t really mean anything.
Most metal parts testing is destructive. I.e., once you test the parts, they are destroyed and you can’t use them anymore. That’s why the trust I certificates is so important. They certify that metal from the same batch passed those tests. That’s why it’s a huge safety risk if the certs are fake, there’s no guarantee that the metal can meet the requirements, and no way to test without breaking the parts.