The good live long, the bad die early.

好人长寿，坏人短命。

youdao

Transplants and new cancer treatments mean that many who in the 1940s would have died young and left a good-looking corpse now live long enough for their bodies to wear out.

ECONOMIST: Waiting for Dobbo

But as a general idea of how long the average person will live, yes, we do have a good idea.

FORBES: In Which We Look Forward To The Brad Delong v. Paul Krugman Cage Fight