Kinda? I know that's the supposed cliche, but it doesn't really ring true. The "people's" will as defined by some collective subset of the population has certainly been a powerful influence at times, but it's far from a concept that is simply "given by the people." I don't think Pol Pot's power was given by the people. Hitler's wasn't. Xi Jinping's isn't.
And even Nancy Pelosi's isn't given in the way you imply. Through a strong network of bribing and brainwashing, our entire political system leaves us with the choice of empowering corrupt militaristic theocrats or a party that mostly uses tax dollars to bribe voters. I think a very good response to this situation is "I don't like what Pelosi is doing, but I would really hate what a republican would do in her place." And that doesn't sounds like people have much power at all.
[0]. https://en.wikipedia.org/wiki/Beer_Hall_Putsch [1]. https://en.wikipedia.org/wiki/Enabling_Act_of_1933
I think it's pretty rough to say Hitler was given power from the people in the sense that Rousseau would use the phrase.
My personal opinion is that this is immoral - and we're having this discussion because someone thought it was so immoral that they were motivated to write an article about how much they dislike it - but people write all sorts of articles so that's not a proof at the end of the day... Really, there are some things we can mostly (not all) agree are immoral like murder and rape - but even that isn't universally held (or agreed on to the same limit) because, well, some people do it. So yes - societal morals are pretty vague to define and I'm sure there are some people that feel fervently that House reps trading individual stocks is highly beneficial to society - but I feel like the majority of folks are on the other side on this one.
I don't think you'll find many fully informed people who thinks that house reps trading on insider info is good (myself included), unless they're personally beneficiaries of that system.
But this discussion isn't really about that. The original guy asked "why shouldn't she do this?" She can do it. She benefits from doing it. No one will stop her. Why is it immoral for her to do it? Which is a totally different thing from "the majority of informed people don't want her to do it." To that end, she is behaving exactly as should be expected of her given the amount of power she has.
The only way as far as I know to get people to not make decisions that are bad for the world but good for them is to not let them have the power to make that decision. The US government has become an atrocity of corrupt and consolidated power. That's the problem, IMO. And so long as its leaders can spy freely on Americans, can take 40% of their income, can deny them rights, etc, then this is what happens.
Maybe what you think of as morality is actually just a set of dictum from powerful people that helps them enrich themselves at the expense of you. There's absolutely no cosmic or objective moral basis for our insider trading laws one way or the other. It just so happens that they conveniently enrich the people who make the laws at the expense of everyone else. Again, what moral framework does this fit into? People acting selfishly, or people acting in the interest of some nebulously defined "society?"