The government does it with other peoples money so money is no object and government employees get cadillac plans with almost no contribution. Same with their retirement pensions.
On health insurance most federal emplyee premiums are 50% of the total cost for basic plans. If we get the cadillac plans we pay more than 50%.
The retirement pensions you are complaining about are mostly nonexistent now. Civil Service Retirement system ceased to exist for new employees as of about January 1985. Not many folks are left who are covered by it.
All employees hired after that are covered by Federal Employees Retirement system which is mostly social security coupled with a thrift saving plan. FERS is a defined contribution plan, not a defiend benefit plan. It also raised the retirement age for federal workers.