I highly doubt that owners of large companies actually do a lot of work, even for massive organizations. The corporate web is highly complex, and it's kind of impossible for outsiders to know how everything works internally, but judging from how many management positions there are, and seeing how much free time they have judging from their media presence and them having enough time to go to space (which requires training might I add), it's hard for, at least me, to see how they do much of anything besides speaking in events, owning the means of production and occasionally using their money to expand the company.

Again, it's hard to tell with these companies being secretive and this large, and maybe the owners do a lot more work than I'm giving them credit for. But from the various stories and their media appearances, I have my doubts.