Invested in airlines? What?
Having been there and done that, flying, even at a "regional" is a better job than being a Vice President.
To simulate the experience, go drive in traffic from 0500 to 0700. Then lock yourself in the smallest corner room of your house and start working on optimizing your tax returns, set a timer on the phone so that it rings constantly with people asking detailed questions about one of your 150 projects and interrupt your efforts with several secretaries arguing about percieved acts of favoritism. Break for lunch with your Boss to get a few million more in authority while you talk about him and his promotion, get back to a stack of messages from folks in different time zones. Now you are in a race, can you return calls to keep the operation on the rails before the folks in Europe start going home? Miss a call and something might get spent that costs serious money. In a flash it is 1600 and you start working your way across the planet, ending up by fixing the stuff in California late in the day. You want to get out and go for a run, your Company has a nice set up, but by now the sun is going down and attorneys are coming in town for a dinner (briefing) on one of your other projects. You also need to prepare for a business trip - at least you have "the jet" tomorrow and that saves you an hour or two driving and waiting. Another hour drive and you get home to find your wife and kids asleep. Rinse and repeat at 0500 the next morning. If you are really good, you just make do on 4 to 5 hours of sleep and only go for a full 8 the night before a trial.
Most of the people who work this hard make less than a Captain at NWA, or Delta. Get stock options and your results can differ.
It is just like flying, all the work that the outside world does not see fails to be appreciated by the masses who think the job is "easy." Truth is, a good professional just makes the impossible look easy.
Notice that most of the "suits" on board our flight have a hard time remaining awake for the safety demo. An "effective" manager in the real world (a start up, not a 75 year old legacy company) probably has not seen eight hours of sleep since his last vacation that he cut down to three days because work was piling up at the office.