Remember he lived in a conquered territory that was a servant state to a great pagan empire. Ordinary people might be employed by that empire as a bureaucratic cog-- like the tax collectors-- and we all know how they were looked upon as traitors to their own people. Much of the population of his country was united by their common religion and heritage, and stood separate from their pagan conquerors.
So if you wanted to “live like Jesus”, you might think about moving to Tibet. Or Cypress. But that would really miss the point, right?
Why do you think the Declaration of Independence was such a big deal?
We hold these Truths to be self-evident: that all Men are created equal; that they are endowed by their creator with inherent and* [certain] inalienable rights; that among these are life, liberty, & the pursuit of happiness: that to secure these rights, governments are instituted among men, deriving their just powers from the consent of the governed; that whenever any form of government becomes destructive of these ends, it is the right of the people to alter or abolish it, & to institute new government, laying it’s foundation on such principles, & organizing it’s powers in such form, as to them shall seem most likely to effect their safety & happiness.
That was pretty revolutionary. Think of a list of the major democracies before the modern era, and you come up with ancient Athens. Think of a list of major republics before the modern era, and you might be lucky to come up with a minor city-state, or perhaps Cromwell’s England. Democracies have a lifespan of about 200 years, if you’re lucky, before they get corrupted into collapse… which was why our Constitution was written so carefully, to try and safeguard against problems that had historically collapsed democratic governments, and why the Founders chose the path of a democratic republic and not pure democracy. The point being, of course, that maybe half the countries in the world nowadays have a republican form of government, but until the US came along, government of the people/by the people/for the people (Gettysburg Address!) just wasn’t part of reality.
So, Jesus made it clear that we must live “in the world, but not be part of the world”. So we live where we live, right? And where we live, we have a civic duty. So we exercise that civic duty because it’s our… duty.