It is not so much about courage; it is about clarity. There are mental conditions in which one seems to become very fearless. Nothing great about those conditions. Some drugs, some weed, a bit of alcohol, and there are so many people who lose all fear. Tremendously intrepid they become. They can challenge the God of Death himself at that moment. Three pegs down, you ask them to jump from a seven story, and they would.
It is not really courage that is always virtuous. Clarity is virtue. Yes, obviously, there are many people who are courageous and, in your words, brave, and there are many people who are afraid. I would not greatly distinguish between the two. The real distinction is between people who realize and people who do not realize.