Many cultures are living in total darkness. When the Word of God penetrates a culture, its people move from this darkness into light. We, on the other hand, who are products of the Reformation so long ago, are living in the half-light. We have become content with our culture rather than committed to the application of the Word of God in our lives. One might be tempted to do self-analysis to check for integrity, but that only reveals a Western mindset that is, quite frankly, wrong in this case.
Scripture emphasises community.
Integrity is finally proved in community. If I choose to do whatever I wish with no reference to anyone else, everything I do can claim integrity according to my own standard. This is why James tells us to confess our sins to one another. We have walked away from that. The objectivity of the community legitimises integrity.