Just as I ask those who insist that "the government is inherently inefficient" to look at the lines of accountability to determine why they might think that and to identify where the real problems lie, we can perform the same exercise on BP. There were problems with the well that caused significant concerns among personnel there. But the lines of accountability, the determination of what sort of behavior is rewarded and what sort of behavior is punished, determined that the best course of action was to shove the problems under the rug.
The nature of Corporate organization almost guarantees the response. Would the CEO have approved had he been informed? Probably not. That's why he wasn't informed