Someone else's finances are not mine to discuss, regardless if they're family or not.

I mean I feel like that's not really my business to tell. Just like I wouldn't tell my family if my son had a hemmeroid. Yeah its a lie of omission, but its just kind of not my business to share with anyone.

But on the other hand if they're stupid wealthy they probably obtained that wealth through the exploitation of workers and I would tell everyone including my extended family that my child is a piece of garbage and I raised them better.

I see no moral imperative to tell people about others financial status unless not knowing would directly harm them, like if they were about to lend money to someone known to not repay their debts.

People don't have a right to know everything about everyone.

In this scenario my sons wealth would not negatively impact those relatives so I have no moral obligation to tell them. In fact, telling them even risk harming my sons relationships and physical and emotinal and social wellbeing, so it's more immoral to tell my relatives about this.

Not my business.

"A lie by omission is still a lie" is bullshit in many circumstances, including this one.

I've told my wife about the older ladies at work I talk to. She knows where I go to bed every night (with her, if that wasn't obvious). I don't tell her every time a sweet older lady says hi to me, or if I wind up in her office and we talk for 45 minutes about nothing important. She knows it happens, and she trusts me to not cheat. And I'm not interested in cheating. I just like women in general (personality wise) and tend to get along with them. A lot of these women are married, too, and also aren't looking to cheat.

And that's just one example of the "lie by omission" fallacy.

If something isn't your business, you're not a liar by keeping someone's privacy.

No, because it's not my information to share.

Me personally, a lie by omission is still a lie

We know, your post history of this account and your previous ones were all about you and your lack of discretion.

Why is it your business if someone in your family is rich?