Frankly, it could be $100M and it still wouldn't materially affect anyone.

That isn't really the point. I would say that there are vanishingly few executives worth more than (say) $5m/year for the work they do in their day jobs. Mr Buffett was, maybe a few others. The rest of the pay is because they can get away with it--it's not much per shareholder, everybody else is doing it, and there is a myth that bigger companies need more expensive bosses. That latter is definitely a big contributor to wealth-destroying M&A and empire building.

A bigger company is in many important ways easier to run than a smaller one, not harder. People help you, the blame is diffuse if you need that cover, and a big firm is generally much more resilient to shocks. Sure, the absolute amounts to be made or lost by the company through management decisions are bigger at a big company, but that rarely affects the money of the boss. They still have the same number of hours in a week as a boss at a smaller place.

Jim