Most people knew Bruce Wayne as the billionaire playboy philanthropist; though few knew him as the Owlman, and even less knew him as the B#tman.
The Owlman; and further that, the Court of Owls was just a legend that most children in Gotham viewed as a boogeyman story. A lullaby to get kids to behave.
Beware The Court of Owls, that watches all the time, ruling Gotham from a shadow perch, behind granite and lime. They watch you at your hearth, they watch you in your bed, speak not a whispered word of them or they'll send The Talon for your head.
Though it was realer than most Gothamites could imagine. A secret society, and Bruce Wayne was the head of it; the Owlman. And he had a small army of Talons at his side. Dick Grayson, Jason Todd, Tim Drake, and finally, Damian Wayne.
Then... there was the more secretive side of Bruce. The B#tman persona. B#tman was another fairytale type, told through generations in Gotham's darkest corners. Of the mystical creature who would bring criminals to justice.
B#tman came to life, and was far more well known than Owlman was. So whenever there was a threat, B#tman and his Robins, or Owlman and his Talons took care of it. By whatever means possible.
It was more than easy, keeping the facade of justice, of vengeance. Even the so-called Justice L3ague was fooled. B#tman didn't, couldn't kill, could he? But Owlman would, and will.