But those 1% are all that matter in this context, because they are the only ones doing outreach and are thus the only ones being perceived by outsiders. Nobody (outside the industry) knows what the other programmers do or what their work conditions are, because they don't actively tell anybody.

Partly that's because those 1% have to do outreach to get enough workers willing to endure those conditions, and partly it's because those are entire companies filled with passionate people (because everyone who doesn't love the job quickly quits) and they want to share their passion.