He wasn't thinking of money.

What good would that do him ?...

He wanted to pass the rest of his life on the sea, giving aid to the enemies of his enemies.

He had a vengeance to fulfill....

Living on land, he would be abandoning this vengeance, though remembering his son with even greater intensity.
The mate was silent for a few moments.
"The enemies are so many," he then said in dismay.