Microsoft’s market capitalization has more than doubled during Satya Nadella’s tenure as CEO. When Steve Ballmet quit as CEO the market cap jumped over $100 million. That kind of difference is why companies pay extremely well for top CEO talent. Management is a skill, some people are really great at managing large, complex, profitable organizations and they’re worth a lot of money.
When they get removed, they often receive golden parachutes even if they seriously effed up the company.
This can't be explained by return on equity. I guess it can be explained by bargaining power or cronyism, or perhaps other things I'm not thinking of.
True often the golden parachutes are way too high compared to realistic performance bonuses. But if you think of that as insurance - the board and the CEO both know this is risky, so they negotiate a fixed golden parachute just in case it doesn't work out - otherwise why would someone who wouldn't get fired take the job, since they wouldn't want to risk the downside?