1) I am pressed to ask you for evidence on your affirmation that every time the SEC acted on the benefit of the US government they got sued and lost.
2) Comparing the SEC to DMV regulations is a stretch. Yes theoretically both should regulate without providing benefits to any particular group or person. However, regulators decisions taken by agencies such as the SEC, create financial consequences far more impactful than whatever DMV action can do in regards of whether they want to help US Gov or not.
Sure there is corruption, but the SEC much like every other government agency has a stated purpose. They don’t in principle act based on incentives or a “what’s in it for me” attitude. They get sued and lose when their actions do not align or go against their stated purpose. I don’t want to get hung up on this rabbit hole, my point was that the SEC has a purpose and aside from corruption it’s not up to the head of that commission to make decisions based on personal incentives.