This is probably the most telling quote of the article to me - "tech" is now code for people who live excessive materialistic lives, so I'm going to rant about that for a bit. I work in tech and do well for myself, but its very disheartening to constantly be compared by popular press to trust fund kids trying to find new and exciting ways to burn all their money while the rest of the world suffers.
But there is a ring of truth to it - there is a definite and huge change in culture when you're hanging out with groups that make on average over 6 figures. I've watched as friends who are stuck in poverty or low end jobs aren't invited to as many parties or events, because its uncomfortable to talk about flying out in your friend's private plane for a week when that person is looking forward to saving up for a new video game. The worst part is watching people become convinced that its some moral failing of people to not have as many resources as them. And then they just don't talk forever. That definitely exists, despite a lot of very good things happening in "tech".