A lot of the "so successful" have a TON of help. At the home front things are covered - stay at home wife, cleaners etc. You come home, home cooked meal, wife happy to hang out go on a walk do whatever, kids taken care of.
You go to work, you have the parking spot, the assistant with a schedule. Strong managers.
Again, these are the "so successful" folks.
The 70 hours of work is mostly meetings, strategy, bouncing ideas off people you got to hire to work with. It's not terrible