"worth it" doesn't even figure into it - that's money someone was promised. Millions of someones. "work this job for shit pay and at least you won't have to eat cat food in your golden years." If you "work to curb entitlements", though, you're a fiscally prudent legislator. If you "renege on promises" you're a horrible human being.
It's already happening in my kid's school district. Money ain't there, so who you gonna starve? The pensions? Naah because that involves bankruptcy can't do that. The bondholders? naaah default on a bond and you'll never be able to borrow again. The current teachers? Yep boy howdy. Fire a bunch of 'em, freeze the pay of others, kick the arts programs in the head and we can afford to keep paying the people whose pensions were promised them in '75 when interest rates were fucking NINE PERCENT.