***SPOILERS*** Powerful unique theme ***SPOILERS***
In my opinion, the most powerful thing about this movie is how the security and power associated with money and position can slowly be stripped away and under the right kind of emotional pressure even a man of strong social and financial standing like Hearst can be reduced to confessing to a crime he did not commit.
He has everything, but when they turn the things he loves the most against him, he starts to crack almost immediately. This, I guess, could be true of most of us and is what makes the movie unique and powerful.