In my mind it beats the alternative.
You may have missed the point that actuarially those of us of higher SES in the skilled labor force yes have longer lifespans, but also longer healthspans: there is what is called “compression of morbidity.” Of course who knows for any individual? I could get hit by a car bicycling to work Monday morning. Suddenly find out I have metastatic melanoma. But by odds I am right now more likely to live to 89 or 90, and most of that time without significant disability.
Of course it is unfair that the unskilled low SES labor force is much more likely to not only die much younger but to spend more of those years with significant disabilities, both cognitive and physical! And unable to get their full retirement age benefits until they are much closer to statistically probable disability and death, if not already with some disability.
I’m not going to off myself early, stop engaging in my healthy nutrition and exercise habits, or not take advantage of the better than average healthcare I have access to, in the interests of fairness though.