However it is important to recall that the people who actually made all the money extracting the wealth got out years before, retiring and/or selling stock. They're bystanders now and probably happy to run the whole operation again.
Although as an aside who these people are who think corporate pensions are a good idea is beyond me. People really should be in charge of their own savings in preference to their employer, expecting some random corporation to cover the cost was always a bit crazy even when it seemed sort-of possible that the system was stable. It is easy to have some sympathy but, as a practical matter, it was never going to work and it isn't a surprise that it didn't.
Defined contribution is a much less risky retirement scheme.
Funny what incentives get you. We had incentives for long term consistent strength (people holding stocks for dividends) and got it. Today we hold for short term gambling profits so we get gambling style shell games of companies.