In the current issue, THE ECONOMIST frames Walter White's ambition on "Breaking Bad" as a positive business trait. Here you can read that. White, just like Rupert Murdoch, wanted to build an empire. That's a good goal for businesspeople to have, says THE ECONOMIST.
But, White is no Murdoch. He lacks the true empire-building ability of a Murdoch. Part of that is emotional strength and stability. White is breaking down. He regrets Hank's death. He confesses to Jesse that he allowed Jane to die. He is driven to continually even scores as he wants to do with Jack.
Murdoch will be leaving a business empire to his children. White has nothing to pass on to his, not even lessons on how to succeed in a business. In the last episode this coming Sunday the audience will find out if White can even pass through some cold cash for his family. But with the feds watching that's doubtful.
The reality seems to be that White's wild ambition outstripped his skills, judgment, and inner set of controls. Had he not been so ambitious he might have been able to take the money from the meth operation, safely launder it in the car wash, and get out. End of that story.