When has this ever happened in the history of mankind? Never, it is just a pipe dream.
Bigger, stronger countries set rules/standards for others and exceptions for themselves. That is how it works, whether we like it or not.
Never in the history of mankind have we had weapons capable of annihilating a city with one shot.
Never in the history of mankind have we accessed enough energy and matter to change the balance of the global atmospheric gas concentrations.
This is a time in human history where "never in the history of mankind" things should be given serious consideration.
A Thousand years ago, various groups of humans were trying to control other groups of humans, with stronger groups setting rules and weaker groups following them. Today we're doing the same. A Thousand years from now, we'll likely be doing the same.
We go that road, and in a thousand years, we won't be doing much of anything because we'll be an extinct species.