Imagine if I was visiting Laos and told someone I met in the countryside that I spent, say $2,000 on a racing bicycle -- which would be considered "normal" in bike racing culture in many parts of the US.
Imagine what that person would think!
My central point is this: People are quick to "normalize" their behavior relative to their perceived peer group.
So, yes, multinational CEO compensation is hard to comprehend. (It is arguably to the point where it does not serve those very corporations well. But that isn't my point...)
Just remember, the income and spending habits of a "typical" mid-range software developer in a major U.S. city are similarly incomprehensible for a wide range of people.
In some sense, it is turtles all the way down.
P.S. I'm not defending CEO pay. First, I haven't really studied it up close. I'd like to see more, erm, experimentation in it. Lowering it, sure. But also I'd like to see it deferred, for example, so a CEO's compensation is also tied to what happens after they leave. That would increase the incentive to not plunder the place or take shortcuts. Yes, I recognize this proposal seems to mix incentives between past and current CEOs. But that reflects reality. You can't just "wash off" a terrible previous CEO. And the "glean" from a wonderful predecessor will pay dividends for a long time.
P.P.S. Shameless plug: if you are a well-funded not-for-profit with a generous comp and benefits package, you could do worse than hire me. I'm an expert at studying CEO pay and pay inequity at organizations, both using intra- and inter- methodologies. I'm part of an exclusive self-selected, self-reinforcing group of self-proclaimed experts, so be sure to send your best offer.