Nader is so lost I doubt he'll ever find his way back.
Corporate America is not behind the current healthcare system. In fact, an overwhelming majority of employers would prefer to get out of the healthcare industry completely, and focus on their core competence, which is not healthcare management.
We've created a trillion dollar entitlement industry that powers NGOs, like AARP. Furthermore, the industry is politically protected by both Republicans and Democrats. The former support Medicare/Medicaid because their voters abuse it, and the latter lend support because it's their political turf.
We can only dream of a day when corporate America turns on the government-funded healthcare industrial complex, and they force through reform or they make Medicare and Medicaid available to everyone, without raising taxes.