Ain't that the truth! I ran across a good description of how we view sin a while back:
The difficulty, of course, is that sin doesn't look evil and wrong—unless we see it in someone else. In our lives it appears to be benign, attractive, and even indispensable. How could we live without it? We're so familiar with our sins that they seem second nature. That's the problem!— Christianity Lite, pages 109-110You might recognize it, I posted it before.