Governor Vetoes requirement to reveal taxes

Governor Chris Christie vetoed a bill to require Presidential candidates in New jersey to show thier taxes. https://www.usnews.com/news/us/articles/2017-05-01/new-jerseys-christie-vetoes-bill-seeking-trumps-tax-returns

There are plenty of other states considering this so we probably will get this requirement.
I understand the argument that it is a privacy issue, however I disagree with it.
No one is forced to run as President or for any government office.
We deserve to know how they will personally benefit from their actions in government.
We deserve to know if they lie about donating to Charity and Churches to win votes.
We deserve to know who has paid them off.
We deserve politicians who work for the voters rather than themselves, it is called Public Service.  Getting elected should not be a way to become wealthier at the expense of the taxpayer.