I was once told by a foreign pastor why the army made him a supervisor in spite of the fact they hated true Christianity. They had to. The non-Christian soldiers were so prone to laziness and bribery that, in order to ensure their tasks would be completed, they needed someone with integrity who had a high work-ethic. Though the Orthodox church maligns these Christians, they have no grounds whereby to accuse them in respect to their secular work. This harmonizes with Scripture. For instance, take Daniel’s ethic:
Then the commissioners and satraps began trying to find a ground of accusation against Daniel in regard to government affairs; but they could find no ground of accusation or evidence of corruption, inasmuch as he was faithful, and no negligence or corruption was to be found in him. - Dan. 6:4
The Christian, by definition, is marked for close scrutiny. People examine their lives, looking for the loophole to justify their suppression of righteousness. Few things give them more ground than negligent Christian workers. We are not only to be “the light of the world” but also “the salt of the earth.” In other words, we are called to “adorn the doctrine of God our Savior” (Titus 2:10). You have the chance, every moment from 8 to 5, to make the Gospel beautiful! Let us, therefore, examine ourselves. If we find ourselves lacking we must repent immediately for Christ’s sake.
Then these men said, "We will not find any ground of accusation against this Daniel unless we find it against him with regard to the law of his God." - Dan. 6:5
Let your doctrine offend, not your life. If they accuse you, let it be because of your stand for truth. Which is only to say we should “walk in a manner worthy of the Lord” and “strive to do what is right in the sight of men” (Col 1:10; 2 Cor 8:21).