What makes an excellent actor or actress excellent is the ability to detach themselves from reality and exist in an alternate reality. Many choose to remain there when they're off the clock.
I will give Bale credit for visiting many of the victims in the 2012 Aurora theater shooting (it had occurred at a premier of one of his movies). By all accounts, he made a sincere effort to bring some comfort to the victims...but by most accounts, he's also a major PITA to those who have to work with him.
Could be more a reflection on the people who work with him, considering most people in Hollywood are PITAs.
Listen to the rant he went on that I exerpted above. Note NSFW