This is a nasty thing to say to someone who is talking about the circumstances of when they considered suicide.
It doesn't matter if you think it's true, or if you think the person deserves it, or any of that. It doesn't matter if they're rich.
In the end, you are the asshole. You are the one dunking on someone's toughest moment in life. If you can do it to them, you can do it to anyone.
It's not justified "because they're rich". The same idiotic logic is used by pompous jerks who litter "to give janitors something to do" or who treat waiters like shit "because it's their job". Maybe you're reading that thinking "that would never be me" but, I've got news for you, that IS you. Just a different flavour of it. The person on the other end is human and you treated them like dirt.
You tried to shit on someone who shared their lowest moment in life. Let that sink in, deep.