No matter how many or how few people you have reporting to you, you must remember that as you climb higher in the ranks, your words will be taken as commands even if you're just thinking out loud.
If we care about the average working American, then Wal-Mart matters. A lot.
Money is a short-term result that incentivizes short-term decision making.
The cost of leadership is self-interest.
I love science fiction - always have.
Believing that your competition is stronger and better than you pushes you to better yourselves.