I think that highlights a missing factor in daenz's question.

If the highest tax bracket is 100% then there's no reason for a CEO to want a higher income, as it will all go to taxes.

In 1960, the highest tax bracket was 91%, for incomes above $200K (that's $5.6M in Y2022), or filed single or separate) or 300K ($2.9M in Y2022) for married+joint.

A CEO in the highest bracket would have to justify a $10K raise that cost the company $100K.

While the highest bracket now is 37%, for those making $314K or above. Asking for a $100K raise only costs the company $160K.

I think that's an easier sell.

So another way to affect CEO compensation is to raise the income (and wealth) tax rate.