This is a direct consequence of productizing things that should be rights. i.e. justice, education, accounting, health care, infrastructure. Making justice a product rather than a right means if you can afford a better lawyer, you get better justice. If you can afford a better accountant and tax layers, you can pay less tax. If you can make yourself not black or brown, or not show up in court and just have lawyers fight for you, you get better justice.
Republicans absolutely, unequivocally, believe in class. Better people have more money. Period. They can buy better products with that money - otherwise there's no point in being wealthier than others. Democrats are kinda sorta sometimes maybe occasionally OK with this but then abruptly not OK when the political winds change a bit. The party of ambiguous ethics are the Democrats. The aristocrats' party is the Republicans.
Directly asked, both party types lie. But if you look at a few dozen policy positions an individual policians has, with emphasis on the less conventional (the ones with ready talking points) ones, it's really easy to triangulate their positions and contradictions - for a political scientist.