Kind of a long way of describing that big company big wigs get paid a lot of money, and it isn't really a big issue because no worker bee is as irreplaceable.
He knows a lot of similarly well placed people and knows a lot of Google's business which competitors would be interested to learn about (nothing informal on paper of course), and like a tin pot dictatorship, stability is better than churn, regardless of whether the stable leaders are amazingly good or not.
I think Mohan is a little more than just another "big wig." Google probably should have given him an incentives package similar to $100 million a long time ago.
He knows a lot of similarly well placed people and knows a lot of Google's business which competitors would be interested to learn about (nothing informal on paper of course), and like a tin pot dictatorship, stability is better than churn, regardless of whether the stable leaders are amazingly good or not.