I don't think Bane was as well thought out as Joker in Fact...the truth is Bane's politics were Ras' al Ghul's Politics. Bane and Talia were just fanatical followers...mindless and thoughtless. This is proven by the fact they were willing to die for their cause which afterwards could not be guaranteed just by wiping out the politics of one American City.
Ras' goal wasn't to die gloriously but to guide a new Gotham from behind the scenes. Perhaps that is communist in nature but Communist are always more overt.