It is failure that guides evolution; perfection provides no incentive for improvement, and nothing is perfect.

"The Lesson":

Yes, my fretting,
Frowning child,
I could cross
The room to you
More easily.

But I’ve already
Learned to walk,
So I make you
Come to me.

Let go now—
There!
You see?

Oh, remember
This simple lesson,
Child,
And when
In later years
You cry out
With tight fists
And tears—
“Oh, help me,
God—please.”—
Just listen
And you’ll hear
A silent voice:

I would, child,
I would.
But it’s you,
Not I,
Who needs to try
Godhood.

The pursuit of perfection often impedes improvement.

The evolution from the $1 category to the $2 category might mean a marginal improvement or nothing at all or a worsening in poverty.

When black blood was money, the savvy businessman knew to open the vein.

High-minded idiocy pitted against the power of coin.