In his 2005 commencement speech to the graduating class of Kenyon College, David Foster Wallace told this story: There are these two young fish swimming along, and they happen to meet an older fish swimming the other way, who nods at them and says, "Morning, boys, how's the water?" And the two young fish swim on for a bit, and then eventually one of them looks over at the other and goes, "What the hell is water?"
Your "water" is your company's culture. If you can't see it anymore, it might be time to take a swim in a different ocean.
After all, you can't change what you don't see.