If we are primarily focused on the obvious sins of the world, we are diverted from OUR sins-pride, a lack of grace, selfcenteredness. Our primary purpose is not to defend right from wrong, or truth from untruth-it's not even to defend Him. God can do that, Our ultimate goal is to be fully yielded to Christ. -Shanti Feldhahn in “Veritas”

Obviously, this is from a book Shanti Feldhahn wrote, which I have not read. But reading the quote, even if out of context, stirred me up a bit. On first reading I disagree because I believe God has instilled in us (personally) a great sense/desire of justice. I believe HE has put in us a desire to speak out on wrongs we see, experience, hear. I did not find any one specific Scripture on this, but there is a general sense of this in His Word. We are to care for the poor, widowed, oppressed…we are to correct, rebuke reproof… So we don’t need to defend God-yes, he can take care of Himself; but He calls us to take care of others (widows and orphans in particular in James), and that often means defending them.

On second read, I partially agree. We should not focus on the sins of the world with neglect to our own. So, yes our primary purpose is to be yielded to Christ and living a life that brings all glory to God.
I think though, that as we pray and speak out on the sins of the world (as God leads and directs), that God then does divert us back to our own sins where we are able to come to a place of repentance.