That of course does not diminish his self-sacrificing nature. Kudos to him.

I don't think wanting to retire is selfish especially if you are forced out of your job after working all of your life. Many work all their life and deserve to retire. In old age the majority of us do not have the ability to continue to work. Our bodies begin to fail and sometimes our minds. Preparing for such a time and subsequent retirement makes sense.

Its those who hoard wealth and never, ever have enough that are the selfish ones. There is a huge difference in wanting to live a reasonable life, enjoying the benefits of a life of hard work and those who hoard so much wealth that money no longer has any meaning.