Playing devil's advocate: a dollar right now is also worth more than a dollar 30 years from now, both from an inflationary and from an investment perspective.
That said, I'm still largely in agreement with you. While there are a myriad ways to make more money, there's no way to make more time.
You account for the time value of money, but not for the time value of time.
A week right now is worth more than a week 30 years from now. 30 years from now, your life might have changed beyond all recognition, or you might be dead.
Reasonable people can disagree over how to discount future freedom-from-work vs present freedom-from-work.