LOL, Captain Robau, the manifestation of the inferiority complex of Trekkies.
I think you're taking his popularity here almost too seriously. A fangroup that can poke fun at itself by creating their own meme can't possibly have an inferiority complex. It's called having fun dude, plain and simple.
Lest we forget all those times we ever thought that William Shatner could beat the Terminator in a fist fight, or that Kirk and Spock were the original modern slash-fiction characters.
Really, am I taking this too seriously?
Robau exuded dignity faced with impossible odds. He had composure, and the way he sacrificed himself was a testament to his character. To be killed by an ignoble adversary is not to surrender. To sacrifice oneself to steal a couple minutes time for the safety of your crew is not a failure. Robau and George Kirk died honorable deaths.
Unlike Pike he didn't exude any wholesomeness. He had a man of mystery quality to him. If he had been a regular character he would always be the one that never had everything revealed about him, a man with hidden qualities and potentials. He's the sort of character that it could be was really working for Starfleet Intelligence, or who had an alien grandparent or had experienced a great personal loss of a wife and children and yet never ever spoke of it. A man of mystery.
So, more interesting.