Corruption always breeds greater corruption. Once someone can get ahead through corruption they have an advantage over the non-corrupt. The non-corrupt can’t compete and are driven out.
Allowing money to influence politics AT ALL (including “think tanks,” “non-profits” like ALEC, corrupt information sources like Fox, Epoch Times & talk radio, etc) bred greater and greater corruption to the point where a corruptly-constituted Supreme Court allowed unlimited money in political campaigns. That unlimited money drives a massive and unbeatable influence machine.
And then there’s just basic corruption – politicians paid by oil companies to allow them to profit off of killing the planet.
Our “system” is probably irretrievably corrupted. Tobacco kills around 480,000 Americans each year and causes a huge amount of disease and suffering beyond that. It is still legal and largely uncontrolled.
And, of course, the climate crisis has been allowed to reach a tipping point.
(Yesterday a “liberal” friend was talking about how “progressives” killed the infrastructure bill. That “opinion” comes straight from corrupt information sources. Despair.)