I think it very much depends on how much interaction as a father you want to have with your kids.

If you want to be cooking some nice meals for them, coaching sports, attending events, assisting with homework, tucking into bed, dealing with illness, prepping for holidays, having fun together, taking vacations, etc. then you have to devote a substantial amount of time. I suspect that most of these busy CEO dads don't spend all that much time doing these things.

You only have so much time in the day and available time that corresponds to the time the child is available and active is in very short supply.