Wouldn't a magnate be more "powerful" than a mere CEO? There are MANY CEO's in the business world, but only a few magnates. Rockefeller, Carnegie, Morgan, Vanderbilt, Astor, Buffet, Gates, Jobs. THOSE are magnates! A CEO is like Romney or Michael Eisner. Or Herman Cain! lol
How about Czar? Dictator? Lord of the Realm? Monopolizer?
"It's not where I've been, fat boy, it's where I'm going." What Tommie Frazier said to Warren Sapp in the 1995 Orange Bowl