If you're within their jurisdiction, you are obligated.
That's how governance and jurisdiction works.
Also, a lot of us aren't exclusively focused on our own personal self-interest. We have a concern for the welfare and prosperity of our fellow humans. Y'know, basic human empathy and compassion.
To enact laws to limit citizens' freedoms in any Constitutional manner they choose, beholden solely to their board of directors and not the people over which they have jurisdiction?
You're not talking about freedom, in general, you're talking about a "freedom" to govern others", and in this case, unlike representative government, it is not made up of the governed and indeed has no reason to care at all about the interests of the governed.
At best, you're relying on State and Federal laws to limit how bad it can get, because without those legal structures above it, this is a nightmare scenario for anyone but an authoritarian oligarch.