I mean we live in a representative democracy so the direct answer is "the people we elect" and the indirect answer is "we do, because this is a society." Not really sure why I had to explain how laws work.
What society decides is important. Like just about everything else.
It has never been one-size-fits all in any of those categories.
You need to look up the word "minimum" in a ****ing dictionary. Unless you actually mean to argue that minimum wage somehow requires
full communism? America has a minimum wage right now, are we literally the USSR now? Did you think about these questions at all before writing them?
If elected representatives were required to earn minimum wage and not one penny more from any source, I bet it would be more than $7.25/hour
But to answer your question... no I don't think anyone has proposed that. And the people we elect sure as hell aren't going to vote themselves a massive pay cut.