Does Bane being a PURELY physical threat hamper him as a villain?
IMO, though I love Tom Hardy as Bane, I don't think making him ONLY a physical threat to Batman was a good idea. I think what I love most about the Nolan series is that Batman doesn't just physically fight his villains, he combats their ideologies. I think this is what made the Joker such a phenomenal villain, the battle at the end (ferries) seems so much more significant/potent because this isn't just Batman trying to fight his way through another Joker scheme, these are two men willing to go to the extremes to fight for their philosophies.
Ra's- Represents the idea that criminals most be combated using the most extreme methods possible.
"Criminals thrive on the indulgence of society's understanding."
"Your compassion is a weakness your enemies will not share."
Contrasts with Batman: Bruce believes that this "compassion" is what seperates him from the criminals. He also believes Ra's methods to be too extreme, he disagrees that Gotham is no longer worth saving and would rather try to inspire a city than destroy it
The Joker- Represents chaos. The Joker is essentially a misanthropist and believes that human being's moral code is a joke. He also believes that when times get hard society will abandon its moral code and destroy each other
"See, their morals, their code: it's a bad joke. Dropped at the first sign of trouble. They're only as good as the world allows them to be. I'll show you. When the chips are down, these, uh… these civilized people, they'll eat each other. See, I'm not a monster; I'm just ahead of the curve."
Contrast with Batman: Batman is an idealist who believes in the human spirit while the Joker believes that the moral code of most people is essentially a fabrication. Bruce believes that even in combatting those without rules having your own moral code is important and the Joker believes that the best way to live your life is without rules. Bruce's whole goal is to inspire people to do good, the Joker's goal is to prove that doing the opposite is human nature
Of course this is all open to opinion, but I find Bane's ideology essentially being a rehash (or so we are to assume) of Ra's to be very boring. While the characterization is fantastic, I don't find him up to par with the main villains of the previous movie because all he can do is beat up Batman. There is no deeper conflict going on than the standard comic book fare. Yes Bane wants to protect Talia, but we are never given a reason why he believes in the League's ideology so much or why he would have a personal vendetta against Gotham/Bruce Wayne