The order has been in situations where it needed to do several things that seemed a bit too drastic, but the need for such events has been critical in the growth of humanity without any issues. Human kind have created several projects that have done more harm than good and back in 1870 there was a discovery that humans wanted to take to the public. A scientist of those days had discovered a new way to stop the aging process, but the discovery caused the patients to go insane in a matter of years.
They had been able to keep the body from aging, but the mind was unable to process this properly and it caused a very serious problem for most subjects. The biggest problem was that a lot of people would be willing to go insane just to keep from growing older. The order new that this was a flawed experiment and they caused a flood that wiped out the northern countries in Europe and got rid of all evidence of such a project.