I don’t disagree with anything you said. However, if the prevailing attitude was “fuck these companies that pay me these privileged tech salaries”, we’d all be treated much worse.

It's not "fuck them", it's just don't confuse a business relationship with a social relationship. Companies don't pay high salaries because they want to be nice, they do it because the market requires it. The second the market stops requiring it, they'll stop doing it. They'll treat employees only as well as the market and the law requires, employees should do the same or they'll be taken advantage of.