The USSC sticks to the idiocy of the New Deal court, and the only plausible reason I can come up with is because so much would be set upside down were some of those opinions overturned. Economic expediency and the irrational demand that someone, anyone, needed to do something, anything, trumped the Constitution in the 1930's. No further evidence of this fact is needed beyond the supreme stupidity of Home Building & Loan Association v. Blaisdell where the USSC declared that, while the Constitution explicitly prohibited the states from altering contracts, that the states could, in fact, alter contracts. The Constitution became squishier every time the Court upheld the government's latest intrusion into the market and people's liberties. The panic of the Depression changed the momentum of constitutional jurisprudence, and the inertia that interpretation has gained since is nigh unstoppable. Just imagine the turmoil that would ensue if the USSC dared to declare that we are going to return to a federal government of few and enumerated powers.