Although many companies are wary of associating with the health law while it remains a political lightning rod, the Affordable Care Act is increasingly entering the mainstream as major corporations, sports teams and others integrate it into their businesses.

The development — little-noticed amid the political skirmishing in Washington — may not erase widespread skepticism about the law, which has deepened in recent months, polls show. But as the law becomes embedded in American life, the Republican drive to dismantle Obamacare will almost certainly become more complicated.

“Once the legislation became the law of the land, we feel it became a reasonable decision to educate our fans as to how it impacts their lives,” said Brad Ruiter, a spokesman for the Minnesota Timberwolves. The National Basketball Assn. franchise is running ads at home games paid for by the state’s insurance marketplace.

The MNsure ads at the Target Center in Minneapolis — which also run at Minnesota Wild hockey games at Xcel Energy Center in St. Paul — are the kind of promotional campaign that many of the law’s critics had hoped to prevent.