Everyone has to obey the laws of the country in which they live. Other wise they will find themselves in prison or dead. In every country there are laws which are strictly enforced to some and not others. Then there are laws which are not enforced to anyone. These are sometime old laws which no longer apply or just so out dated that they are overlooked.
Some times there are laws that can be gotten around by doing something just a bit different.
Yahweh puts, or lets, the leaders of all countries in power for what ever the reason. In the event a Law is in conflict with a nation's laws look at both of the laws themselves. Ask is there a legal way I can do both at the same time with out breaking either. Here I will give an example. In the United States it is against the law for a person to have more than one wife at any one time.