How could providing a DB pension at largely the exchequers expense be of any benefit to society? It only benefits the recipients.The State sector has a genuine advantage in providing DB benefits. The private sector (at least the big boys) kidded itself for many years that it could do that until recently. This is simply one of those things like national defence that private sector capitalism can't do well. Many reasons but mostly because they are not prepared to accept the short to medium term risks. They could of course continue to provide DB and charge employees for the risks but that wouldn't wash.
The State can take those risks so it enjoys a key competitive advantage on this. This should lead to actual cost savings to society as a whole at it's combined remuneration of the public sector can be that much less. I am not entering the debate as to whether that is actually happening but the big picture is that providing a DB pension to state employees should be an economic win for society as a whole.
On the separate issue of funding for State pensions, it would IMHO be a silliness to have a €300bn debt alongside a €100bn pension fund and no modern society does that so far as I am aware. The National Pension Reserve Fund was an illusion and turned out to be exactly that.
The only way of benefitting society apropos superannuation is as I outlined.
Does "wouldn't wash" mean it won't happen due to the menace of the PS unions?
A confusing reference to national defence-the Irish Army is at best ceremonial/figurative and de facto defence is provided by the RAF/British Army/NATO.