I have to hard disagree here. There are a lot of bad actors and abusive/manipulative people who would use this information to unfairly pressure someone if they knew how exactly much they made.
If they had the ability to pressure someone, why would they not simply be able to press them to show them their tax returns? And would this happen with sufficient frequency to negate the benefits of price transparency?
Norway has had public tax returns for a long time.
Does anyone who lives in a country where tax records are already public have any insight on whether this happens with any non-pro-corporate-fearmongering frequency in those places?
And wealthy people who prefer to not show it would become targets.
Are wealthy people who do show it frequently "targets"? I am not aware of rich people in the US being at risk from criminals.
Conmen still definitely exist and they will target the recently rich quite frequently. "Oh did you just get a big options buy out - well I run a wealth management fund that can help grow that sustainably..." these sorts of schemes hurt people bad but because the people had a boatload of money they tend not to raise as much media attention - also IMO America is socially accepting to people who fleece others out of their well-earned cash, if the fool was parted from his money then the benefactor is clearly "more deserving" of it.
I think statistically it's not the case that wealthy people are more targeted, but I know wealthy people who'd rather live under the radar wrt their wealth.