Unless you’ve been bamboozled by the frantic fictions of the right wing, you know that the Affordable Care Act, familiarly known as Obamacare, has begun to accomplish its first goal: enrolling millions of uninsured Americans, many of whom have been living one medical emergency away from the poorhouse. You realize those computer failures that have hampered sign-ups in the early days — to the smug delight of the critics — confirm that there is enormous popular demand. You have probably figured out that the real mission of the Republican extortionists and their big-money backers was to scuttle the law before most Americans recognized it as a godsend and rendered it politically untouchable.

What you may not know is that the Affordable Care Act is also beginning, with little fanfare, to accomplish its second great goal: to promote reforms to our overpriced, underperforming health care system. Irony of ironies, the people who ought to be most vigorously applauding this success story are Republicans, because it is being done not by government decree but almost entirely with market incentives.

Using mainly the marketplace clout of Medicare and some seed money, the new law has spurred innovation and efficiency. And while those new insurance exchanges that are now lurching into business will touch roughly 1 in 10 Americans (the rest of us are already covered by private employer plans or by government programs like Medicare), these systemic reforms potentially touch every patient, every taxpayer.

“This is the 90 percent of the story that doesn’t make the headlines,” said Sam Glick, who follows health care reform for the Oliver Wyman consulting firm.