That would be disasterous! Imagine the mass production on earth... so the earth gets more mass. So much, that the moon starts falling towards the earth. Then Venus will laugh at earth telling her she is fat. Then the other planets will laugh too, and earth could run away, off orbit, to a quiet spot, while crying. Have you tasted the sea? Those are TEARS...when the mass production starts...
wait... I just received news there are more empty headed people... so it actually will restore our mass.