>>bavell+(OP)
If the company is larger than 500 people, the CEO doesn't have the bandwidth for this type of feedback. He'll either figure out that his reports (CTO or lower) are not doing their jobs, or that you're a troublemaker. Odds are he has hired the CTO and had significant influence on hiring those below the CTO. So he's invested in that CTO. You, you're some rando coming up talking about stuff that makes you look incompetent.