Earlier quoted context omitted.
I'm also skeptical. There are no rock climbers on this list. Climbing is still a relatively niche sport (though depending on where you are, it might be one of the most popular), but I'd wager participants collectively spend as much on climbing equipment as many more popular sports. The gear is quite expensive, and for safety reasons, much of it needs to be replaced with relative regularity. You'd be hard-pressed to f…
You’re mistaken. My wife was a sponsored rock climber when we met, and we know quite a few top level climbers (including a couple that non climbers might actually have heard of). Sponsorship keeps many of them going, but not at the level you’re thinking of. Think “can afford to do a euro trip staying at Airbnb’s”. Which is cool, but you probably make more than any of them with your developer gig.
One of the interesting things about climbing though, is that this is often all the compensation climbers get. There aren't climbing leagues/teams that pay climbers a salary comparable to other sports (I suspect some competition climbers get paid a salary or stipend, but I doubt it's as much as a professional football/basketball player). But there is so much money to be made from selling climbing equipment, the manufacturers are heavily incentivized to get their names out. And the superstar climbers like Honnold will get sponsorships from other companies as well (Red Bull, Clif Bar, etc.)