Phrasing it as "I was not brought into this world for" - is entitlement by birth which I find ridiculous.

I have nothing against wanting to improve your condition or striving for better - but expecting something just because you were born or a human - really needs some reality checking.

Also your notion that human condition constantly improves through history is not a given - things can very much regress and humanity can disappear.

It's very probable that your highest contribution to society is 9-5 and supporting enough >2 kids - but it's not very popular to say that I guess.