Working in the construction industry you get:
-nice regular income
-crime free environment (thank's to the Dent act)
Working for Bane you get:
Beaten up by the cops
Beaten up by Batman
Probability of being shot by the authorities
Certainty of being killed because your boss wants to blow up the city
Not only that, a lot of people are attracted to the cult of personality, strong leader figures, and people with a serious sense of dedication to a cause.
There have been cults in the past where people committed mass suicide at the cult leader's behest. In this case, though, everyone working for Bane (directly) are convinced they're doing this for the right reasons. Everyone indirectly working for Bane are in it just for the money... just until they aren't in it anymore (i.e., Daggett and Catwoman).
YouTube is censoring and banning any account that shows the police being complicit in allowing the protestors onto the Capitol's property and into the building itself.
There's a few more videos where the police say "Go, go, go!" and wave the people to move through. You can hear the camera operator saying "Oh no. No!" because it was obvious what was about to happen.
Don't let the fake-stream media dictate your perception of reality.
Always seek the truth, even when it may not be clear where or how to attain it.
What part of "gang of psychopaths" do you not understand? They were fanatics, they didn't care about themselves, they cared about fulfilling Ra's al Ghul's destiny.
So you wanted a long, elaborate backstory on random LOS members 1-50? It was clearly established that the LOS were fanatics in the first six minutes when the thug volunteered to stay behind in the plane and die in the crash because they "expected one of us in the wreckage"
I'm now picturing Talia spending half the movie's time (whenever we don't see her, really) dealing with HR complaints from League of Shadows ninjas about Bane.