Hulk Hogan once said that he would sometimes tell Vince to go to the bathroom and change his battery because of how hard the guy overworked himself on everything. Triple H has also quoted Vince as saying "Sleep is our enemy", implying that there just isn't enough hours in the day to get everything done.
Point is, it should be looked at as an admirable thing in Vince's eyes and in the eyes of everyone who works for WWE that Triple H is taking on a huge workload. If you're preparing to become the future owner and chairman of a global, publicly-traded company like WWE (which requires dealing with investors, stock holders, hundreds of employees, putting on shows almost every week throughout the entire year, etc.) then you'd best be ready for 'overworking' yourself.