In order to be good, the government must be relatively stronger in proportion as the populace is more numerous.
Gist of Idea
If the population is larger, the government needs to be more powerful
Jean-Jacques Rousseau (The Social Contract (tr Cress) , III.01)
This could either imply a larger government, or more powerful laws for a fairly small government. Rousseau implies an almost mathematical law (of ratios) which determines the size of the government.
Rousseau,Jean-Jacques: 'The Basic Political Writings', ed/tr. Cress,Donald A. [Hackett 1987], p.175
Idea 19822 If the state enlarges, the creators of the general will become less individually powerful [Rousseau]