That argument is so bad and is so inefficient that it does more harm than good. People sacrifice their privacy as a trade-off to get something. What do they get by simply releasing all their finances?

Every time I've used it they just laugh it off with "why would I do that?" and think I'm ridiculous.

I openly talk about my finances with anyone who wants to talk personal finance. What threat are you imagining this could pose?

Finances are different right? People tend to hide their finances because of taxes and other illegal shit, and also to prevent jealousy.

As for genetics, most of your genetics are on display every time you walk out the door. People look at you and they can have a good guess about a huge portion of your genes. For example if you have a beard and a penis you probably have a Y chromosome, though this is more challenging to figure out nowadays.

Thus mostly their's really nothing left to hide in terms of genetics. In terms of finances... while I specifically have nothing to hide, more people have things to hide in this area.