Next year I’m turning 50 & also become eligible for retirement. Retirement age in my country for the general population (men) is 65, but the judiciary has separate rules. I’m seriously considering retirement but I have older colleagues who are still working because they say with the life expectancy rising who knows how much that great pension in the present will be worth in the future, so why not keep it going for an additional source of income?
If I was in your shoes, I’d wait for some important issue to come up, and then retire in protest. Make it meaningful enough and you might create something of a legacy.