Right, at this point, you're not a soldier. You're a commander leading a battalion of hand-picked soldiers who are probably smarter than you (if you have funds and can hire well). This way, you're multiplying your effort by not doing the ground work yourself.
With two hands and 24 hours in a day, it's just too limited how much you can accomplish yourself.
The key thing to remember is that Steve Jobs was more of an "investor" and an "advisor" at Pixar. He played no day-to-day role at Pixar. He certainly did not involve himself in any specific product development or management.