Employees are not responsible for managing the pension or agreeing to onerous contracts. More important to a company is what happens to a pension fund. The issue is not whether or not the pension was too difficult to fund, they are not, GM had years of great profits, had they continued to fund and conservatively invest to pay their obligations it would never built to this point.
There are rules in place that assure you recognize the proper amount of pension expense each year. However the secondary rules are how much you actually need to fund the plan. By not funding the plan with actual cash, you create a nice little positive cash flow for the company to be used for capital expenditures.
Look at this 2002 GM pension 8K filing, they speak of all the expense GM is going to need for it's pension plan, then down 3 pages state no funding will be required until 2006 and in the year 2000 and 2001 the total amount of pension expense was only 35 and 81 million dollars. For 2001 that worked out to $125 of pension expense per covered worker and or retiree. In 2008 Rick Waggoner was reported to receive a retirement pension worth 20 million dollars.
GENERAL MOTORS CORP - GM Current report filing (8-K) ITEM 9. REGULATION FD DISCLOSURE
As an example of the use to a company's retirement fund can be, in 2008 GM was using the retirement fund to pay the special benefits to get employees to take early retirement. To the tune of $11.7 Billion dollars out of the pension plan, that was already underfunded. I have been looking and unable to find the level of actual funding for year by year.
GM Raids Pension Fund: $11.6b for Buyouts, VEBA | The Truth About Cars
This is typical of what companies do with their pension plans legally, use them as a cash till to reduce headcount and expense but not fund the pension fund unless it allows them to produce a favorable story as GM did in 2003/2004 by issuing 13 billion bonds and depositing in pension trust and booking 200 million in pension profit for the years on that transaction.
Market Place; G.M. Profit Gets Lift From Pension Deal - The New York Times
The idea that company management got railroaded by agreeing to untenable pensions is absurd.
The biggest problem is that when the pension expenses were incurred and 10 percent US government long term bonds were available to fully pay the expense from the 1960's 1970's 1980's and early 1990's. GM did not do so because of all the tricks accountants can do with these numbers by producing a variable and estimated return instead of producing a funded return. Combine this will the ability to use pension money to get employees to leave at high prices with no expense to the company and you have a flawed system where the employer is not held accountable and promises can be used to enrich the management short term with stock options and non-qualifed retirement packages.