It was a problem before ACA; it's a problem now. The law didn't really change that aspect of the system.
Socializing this theft turns it into Just Another Crisis among the hundreds of others the US has.
The "true" purpose of the ACA was to do something about spiraling health care costs. What was passed was a "compromise" where the people pushing for a public option got nothing and the most onerous restrictions on the monied interests were rolled back. This has not been an effective solution in many senses. I decline to further characterize the issue, however; this is extremely close to a political discussion, and those are ban-worthy here.
I would not put too much weight on conspiracy theories though. The healthcare system is massively complex. It will take multiple reforms to eat this elephant.