Stoic maybe if the same rules applied to him, but it is not the case, they apply to everyone except himself. Maybe it is just me, but I don't like when people apply harsh rules for everyone except themselves. Cult or dictatorship come to mind.
When you're the owner/manager of something, you get to decide how people use the things under your control. It's the same way if you let someone borrow your car or other valuable possession: you'll see rules for how that item can be used (e.g. don't take the Lamborghini off-roading).
If that behavior extends outside of things you _should_ control (e.g. you try to control your friends and acquaintances), then it can be considered psychopathic or sociopathic. If you're just trying to minimize harm to things you control, then I'd argue that it's normal.
The CEO of a company is very much interested in running things efficiently. Without more information, there's really nothing to suggest this CEO has a mental disorder.
Not everything that is lawful is also ethical. He can do it and I firmly believe it is unethical at the same time. Also, and I am not necessarily referring to the CEO, being a bad person – when the noun would actually start with the letter a – doesn't mean having a mental disorder.