Earlier quoted context omitted.
Rock climbing has a very long and storied history of climbers living on absolute scraps to get by, just so they can climb more. This persists in the culture to this day. Yvonne Chouinard, depicted in the article, was one of those climbers. He tells stories of eating catfood and stealing leftovers from the hotels in Yosemite Valley to survive. While you're right that making money helps people live an easier life more…
I think the myth of the dirtbagger is a little played out. It makes for great marketing though. Post War America was a time of relative easy living, especially if you were born in America, white, and a man (and were dodging the draft, too!)
However, compared to a lot of other sports that are complex and require a significant amount of equipment, climbing culture is a lot more weary of throwing money at the problem. Critically, a lot of serious climbers are willing to trade more money for more time climbing by selecting less-traditional careers or focusing less on corporate ladder-climbing.