In my opinion, the industry has been downhill since FB blew up and started abusing its power, though I wasn't around for the dotcom/Microsoft era so that's just my experience.
I absolutely loathe the vast majority of large tech companies, and that's only gotten worse (especially in the last 5 years). I outright refuse to work for companies (that I percieve) that are primarily involved in data collection/privacy violations, as I'm sure a lot of developers would refuse to work on weapons systems.
That said, I'm growing more and more jaded, and wondering how best to focus my efforts. This has lead me to take jobs at smaller and smaller companies, heavily impacting my income, but at least I'm not actively working on projects I despise. I've also found myself spending a lot more time on personal or contributing to open source projects that push back on said projects I despise (largely privacy related).
Not to say everyone is in a position to do that, but I do think we should be more conscious of what we're helping to build. Focus your efforts on projects you believe in, and be willing to push back on those you do not. This is not going to solve anything, but as the crowd grows larger we'll hopefully create enough noise for others to take note.
(this is all very subjective, take my comment with a grain of salt)