At that moment, everything became meaningless - whether you are rich or poor doesn’t matter

[Kohyoongliat]

At that moment, everything became insignificant – whether you are rich or poor counts for nothing.

Is the sentence correct?

Thanks.

[Torsten]

At that moment, everything became meaningless - whether you are rich or poor doesn’t matter.

[Arinker]

I’m curious as to the context. Is there some other characteristic that is significant and is being contrasted with rich or poor?
Saying everything is insignificant or meaningless is rather drastic.

“It is a tale told by an idiot, full of sound and fury, signifying nothing.”
- Macbeth