Well not entirely a fair system.  Think about it if you were a professional that spent years in school, work 7 days a week killing yourself and burning your self out how long do expect to e working till the light bulb breaks.  Lots of professionals and very hard working people over work and when they get sick and can no longer work, all that contribution means nothing for them.  They are left out in the cold asking for scraps because instead of being able to keep and save some of that money for their old age,  you end up poor because you work too hard and got taxed too much and now have to rely of the scraps that might be thrown your way.
These is the system we have, a social system that have become unfair for the hard working individuals, those that work so hard till they golden years and now hoping for scraps.....while the politician party with their billionair friend and sell all crown corporation that we have previousely paid for to make our lives better....