Healthier government hirelings retire at age 50 and use their gold-plated Cadillac health care plans to age 100. The only thing this is going to "save" the taxpayers is from having to lug around any money anymore.
While it varies, some government bureaucracies are filled with the fattest people you will ever see together under one taxpayer funded roof. Most modern diseases are related to obesity but it would be impossible to go after the government fatties as they are often the vast majority.