It pleased Darius to appoint 120 satraps to rule throughout the kingdom, 2 with three administrators over them, one of whom was Daniel. The satraps were made accountable to them so that the king might not suffer loss. 3 Now Daniel so distinguished himself among the administrators and the satraps by his exceptional qualities that the king planned to set him over the whole kingdom. 4 At this, the administrators and the satraps tried to find grounds for charges against Daniel in his conduct of government affairs, but they were unable to do so. They could find no corruption in him, because he was trustworthy and neither corrupt nor negligent. 5 Finally these men said, “We will never find any basis for charges against this man Daniel unless it has something to do with the law of his God.”
Being a good witness has its benefits. If people honor honesty and charity, you'll be respected. However, not everyone likes that, especially if they lack those characteristics and want to get you out of the way.
If those traits are too rare, your foes can twists your virtues into odd vices; the early Christians were called atheists since they didn't believe in the Greco-Roman pantheon of deities, just this one oddball Palestinian dude that went by I AM. In the modern day, loving, charitable folks can be called haters because they don't appreciate the proclivities of the day.
Making it illegal to be virtuous is a way of getting at those goody-two-shoes that are between would-be Dr. Evils and their goal of world domination. Since virtue isn't always visible at a quick glance, those public displays of virtue are often the first to be attacked. That's one reason why religious attire is often at issue in the public square, whether it be crosses for a Christian, yarmulkas for Orthodox Jews or head-scarves for Muslim women; if their foes can suppress those outward expressions of faith, the inward expressions will be harder to manifest themselves.