Your own numbers say that the richest population in the world in 1850 - way into industrialization - died at 55 on average, after ignoring child mortality. Which BTW means they watched maybe 1/4 of their children die.
If any population lived like that today, their lives would certainly be called nasty, brutish and short.
OK, the nasty and brutish part might not have been huge.
Modern medicine is great, but it turns out to not add that many years to our life spans. Mostly money does. Or more likely, the healthy lives money buys.
Put in other words, it's much better to not get sick than to have great health care!
(I'm not just bullshitting here, this is what the data shows (not that I have any links with proofs to show (so feels free to not believe this :)))
If any population lived like that today, their lives would certainly be called nasty, brutish and short.