Yeah, you're right. Though I still wonder if it could have an effect of raising awareness (and ire from certain parties) about this problem Company A is about

Yeah, you're right. Though I still wonder if it could have an effect of raising awareness (and ire from certain parties) about this problem Company A is about to be impacted by some legislation, congressperson B makes some "small" trades accordingly, then a bunch of people pick up on those trades and do the same thing, causing that company's price to spike or plummet in a way that's very clearly artificial and unfair either to the company or its competitors (or just traders who are upset about volatility) Seems like a decent way to force the wealthy to care about this kind of insider-trading as a political issue