It really doesn't. All it takes is a person to listen to people that work at these Fortune 500 companies talk about how big decisions get made. I did that most of my day for years. I also read what many say on online forums. I believe there's plenty of smart people in them including excellent marketers at McDonalds. There's even plenty of well-informed decisions and sensible projects.

However, years of empirical data says what makes most of these companies run amounts to political skill of managers and the Peter Principle. Again, that's not my guess so much as what people in the middle and on the ground tell me. The low-level employees of big, food chains also gripe about corporate visitors saying they're worthless by adding nothing to what's going on or things they say are hugely disconnected from how the place runs day-to-day. As if they're managing a different, better-run company with more staff. Those people come and go with high turnover but a fraction of them move up into the positions making bigger decisions despite adding about nothing to the effectiveness of their restaurants. Gotta be politics and authoritarianism instead of performance given the data.