Obviously, this is a polarizing topic. As you've already noticed from your experiences, most people operate in their lives on the basis of form. When you're interfacing with people from predominantly wealthy backgrounds who value health, appearance, pleasure, etc., it's almost inevitable that they'll be unable to relate to an introspective, sensitive, and cerebral boot strapper such as yourself. Most people do whatever they can to avoid pain and pursue pleasure... If you're looking to connect on a deeper, meaningful level which requires facing the vicissitudes of life head on, you're barking up the wrong tree, not just with runners but with anyone.
I can say this because I've had this experience and I've had it with other runners I went to high school with and was friends with into my late twenties. On a surface level when we were kids, we got along mostly fine, even darn well. As we got older, this changed. The things I experienced in my life and they in theirs made us strangers to each other. More than that, this undercurrent of tension began to exist. We lost touch when the pandemic started and to be honest, I think that's for the best.
Where I've landed on this is very different than what most people, particularly Westerners, would suggest. I've been exploring meditation practice in the Zen Buddhist tradition for a couple of years which has completely changed my perception on these topics. I won't go woo woo on you, but what I can say is that a whole new world opens up to you when you reside in a place of nonjudgmental awareness in your dealings with others. What a gift it might be for other people you interact with if you're completely present with them and listen attentively without waiting for your turn to talk?
Good luck! We're all on different places on our journeys through life, try to be kind to others and, most importantly, yourself.