There is another thing to consider: if he's putting so little time at work actually doing work, odds are his employers will not be so keen on continuing to pay him that much money. "Just being who he is" is not an excuse they will accept, nor, really, should they.
That's the ruthlessly-pragmatic reason to not "accept this side of who he is": nobody else is going to, especially not the people who pay him.
That's the ruthlessly-pragmatic reason to not "accept this side of who he is": nobody else is going to, especially not the people who pay him.