Aren't the public premiums only a % of income up to a certain cap? So it's not like super high income people would pay an outrageously huge amount to use the pu

Aren't the public premiums only a % of income up to a certain cap? So it's not like super high income people would pay an outrageously huge amount to use the public system, they would just potentially pay somewhat more than they would if they got private insurance.