I would rank self-actualization, personal growth, as the second rule behind the golden rule, and there are many schools of philosophy where that's the case: aristotelian ethics, kantian ethics, existentialism, etc.
Why should I (or anyone) care where you (or anyone) rank anything?
I'm pretty comfortable with my ranking of things. What someone else thinks about how I decide to live my life is pretty much at the bottom of my ranking board.
Because your actions will impact society. You might get healthcare, paid for by the rest of society, which may or may not be caused by you not exercising. Or it might be caused by you exercising.
The way people raise their kids affects society, or even simply their decision to have or not have a certain number of kids impacts society. Some personal actions can collectively impact society.
We could go on that merry-go-round forever. Just ridiculous.
Whoa. How is it any of your business how I live my life so long as I am not impacting you or society in any way? I'm 72 years old and I spend my time the way I want to spend my time. I don't exercise any longer. And that will almost certainly shorten how much longer I live. How is that any of your business?