Chasing After the Win, or Chasing After the Wind?

Verse 1
The king built houses, planted vines,
Made parks and pools and gathered gold.
Then he sat down and did the sum,
And wrote down what the sum had told.

Chorus
Chasing after the win,
Or chasing after the wind?
The difference is one letter —
So count before you begin.

Verse 2
They swept the pox from all the earth,
Three hundred million, paid one time,
Against a billion every year —
And worth it, every single dime.

Verse 3
In seventy-one they went to war
On cancer, and the money rose.
For twenty years the old died more,
Then thirty years the numbers fell.
Was it the money? No one knows —
The records simply cannot tell.

Chorus
Chasing after the win,
Or chasing after the wind?
The difference is one letter —
So count before you begin.

Verse 4
They tried a pill, they tried a walk,
And let a coin say who would get.
Near seven walked to spare one case;
The pill took fourteen — walking won the bet.

Bridge
Better is a handful of quietness
Than two hands full of toil.
The second handful still is real,
But thinner, like a tired soil.

Final Chorus
Chasing after the win,
Or chasing after the wind?
The difference is one letter —
So ask what it bought, then begin.