There's definitely some variance out there. Some managers care about their employees and have a conscience, which would make them more likely to sympathize with a hungry dude who can't pay. Others are the typical Scrooge McDuck caricature and go out of their way to be cruel to others.
I think generally in my experience chain restaurant managers tend to get promoted from within the company and start at the lowest position, so they have more perspective on what it's like to be at the bottom rung of society and have a bit more empathy for those who have unfortunately sunk even lower than that. Private business managers on the other hand, it depends. Some are guided by their own morality, while others have a chip on their shoulder about how they made it without help and so can everyone else (which is total nonsense, in order for there to be winners in capitalism, there must also necessarily be losers, so not everybody is going to make a success of themselves in that way no matter how much effort they expend).