... It's better to be honest when you're working with sensitive data. If you can't handle this, then it's better to change the occupation before it's too late. I would never have done anything like that, that's for sure. Even if you will leave ethics alone, such actions may lead to health issues.
A person should have ethics that pre exist their occupation.
An ethical person should act ethically with sensitive information, and sometimes ethics and honesty, as you put it, collide.
Do not confuse honesty and obedience.