Bam, right on the money.
After being fooled by Ducard/Ra's Al Ghul and underestimating the Joker in the Dark Knight, Bruce doesn't seem like he could be fooled again. He knows Lau is bringing in dirty money to the table and runs Wayne Enterprises BEHIND Fox's back. People that are so supportive of TDKR seem to forget that this guy kept tabs on not only Dent (whom he didn't trust), but also his childhood friend. He was so paranoid that his own Butler was concerned that Bruce might be spying on him. Then, let's not forget about the FREAKING SONAR DEVICE.
Batman by the end of The Dark Knight was like the full fledged Batman. The one that can't really be tricked and is on top of his game. The Joker was like the final test to get him up to this point, past "Year One" so to speak. He's seasoned and he knows that the whole "symbol of hope" idealism can't be representative of his crusade. He reaches his "Dark Knight" status so to speak.
BUT then we get TDKR . . . .
Quits. Gets fooled into partnering up with another Al Ghul on building a doomsday device (that he knows is dangerous but doesn't drown it anyway). Falls for an Al Ghul even after she spews the same kind of nonsense that Liam Neeson did. Gets conned by a cat burglar. Pretends that Batman and Bruce Wayne are old pals to Selina, Spider-Man style. Underestimates Bane and listens to another tired Alfred speech (after doing the same thing with the Joker). Sleeps with a woman he barely knows who, again, is spewing things his old mentor stated. Gets duped into confronting Bane. Quits again.
TRUSTS AND HANDS THE LEGACY OVER TO A COP HE INTERACTS WITH FOR TWO SCENES BECAUSE HE SAID HE WAS A FELLOW ORPHAN.
Whatever happened to, "Beautiful, isn't it" Bruce Wayne/Batman?
That guy had potential.