You can dump your men in the ocean if you so choose. Just click on a man, drag him over on top of the small man on the right hand side to increase his level by one and DON'T RELEASE the left mouse button, drag him to the ocean and then release the button. He will disappear and your money will increase by the amount of his value.
Is this a bug or feature? Didn't know it before and i am not sure if i will use it in the game. Sounds a bit unfair.