It seems justified- you mix your labor with the world then you are entitled to the product and as long as there's enough left over for others and as long as it doesn't spoil and you don't allow anything to go to waste then that's okay.
See tundub õigustatud - sa annad oma tööga panuse maailmale ning sul on õigus midagi vastu saada ja senikaua, kuni jääb piisavalt alles ka teistele, ja senikaua, kuni see ei rikne, ja sa ei lase millelgi raisku minna, on kõik korras.