Nintendo is... different. Maybe it’s an old-school Japanese philosophy, but it reminds me of a family business in that each employee puts the business above themselves, and considers it their pride and joy.
That’s why you have so many lifers at the company. So many people that could switch, and get an instant huge payday, but consider what they’re building to be more important. Or something like the execs all taking massive cuts when the Wii U was in trouble, to minimally effect the company and jobs, when you don’t really see that kind of thing in the west.
I 100% believe Miyamoto would rather that capital went to Nintendo, for business opportunities, investments, and lean times. At this point, he’s had such a transformative effect on it that it’s also less his employer, and more his baby, his life’s work and contribution to the world.