It depends, really. If it is a mass plague of a disease worse than Black Death, only few will survive, but humans won't still be extinct. While, if the sun dies, it's the end of us.
Thankfully us humans werent alive for the last extinction because if we were, we wouldnt be here since it was an extinction lol. But, I think the rich will be fine, which is why i only hook up with "Rich Daddy, looking for younger" types on Grindr.