Until year 499. We need eternal life, not pretty long life.
We also need universal good (otherwise eternal life is hell).
Summum bonum, for those who want more.
We aren't turning to being good as human beings though. Hard to tell if we are getting worse or we have always been this way. Actually, it's not hard to tell.
I think if humans were biologically immortal we'd eventually get tired of living and wish to exit the world on our own terms. This could be longer or shorter than a human's current average biological lifespan.