"'It is all the same; that is why I say, "He destroys both the blameless and the wicked." When a scourge brings sudden death, he mocks the despair of the innocent.'" NIV translation
At this point, Job does not see any benefit to being a "moral man" as he sees that, in the end, those who are upright are treated the same as those who apparently have no moral compass. He also sees that when both groups call out to God during their times of trials, His answer may or may not come but, if it does come, man cannot even understand it.
This is the same type of feeling that happens, even among Christians of today. Have you ever asked yourself the question of: "Why do bad things happen to good people?" or "Why doesn't God answer my prayer and deliver me from this?
That is basically what Job is going through and, as we have seen, he is not seeing the spiritual aspects of his current situation. The same type of thing can happen in our lives as we get caught up in the daily physical struggles with this world and lose sight of the fact that there are bigger things going on in the spiritual realm.
"'When a land falls into the hands of the wicked, he blindfolds its judges. If it is not he, then who is it?'" NIV translation
Job describes the fact that, in the past, God has judged nations but, even as He did, He did not show His face to those that were being sentenced. The Hebrew words "kacah" and "paniym" are translated, here, as "blindfolds" but that gives the wrong impression of what Job is describing. "Kacah" means conceals or hides while "paniym" basically means faces. Job is basically saying that those who are being judged are not even given the opportunity to see who is pronouncing the sentence on them.
In this verse, we see that Job is basically wanting God to show up and pronounce his guilt and the penalty for it in person. Once again, we see that Job does not even hold out the possibility that his current situation is not a judgment from God but a testing of his faith for his own good.