If every leader is given very strict laws in his country, then theft, robbery, bad deeds etc. will be less or will not happen in his country.
If the leadership of every country is good, its country will be very prosperous, if its leadership is bad, then the people of that country will also be bad. Every leadership should be given fairly and no false shelter should be given so that everyone in their country can receive a fair trial. If the leadership in his country is good, the people will behave in order, the word of their leadership will spread all over the world and criticism of them that they are running the country very well will be reflected in their actions.