Leaving on time and refusing to do unpaid work after hours is not even remotely close to "slacking."

I think more people are wising up and doing the ROI on unpaid overtime.

Thankfully I did it within my first few years in the workforce, I worked my butt off for a project, got a lot of praise but a disappointing bonus, calculated my overall rate per hour and realized I was being stooged.

In the following year my first performance review was bad, I just presented the numbers and my manager was pretty much unable to counter my argument other than risking my scope for promotions.

I just flat out stated I've proven I can work hard, promote me first, then I go back to that output.

TLDR; people now see through corporate bullshit, fuck you pay me.

True believers (or, at least, people who have figured out that their odds of survival are improved on playing the fool and seeming to be one) are way more than 20 percent of corporate workers. They're probably 70-80 percent (with an unknown contingent of that set being smart people who are simply good at pretending to buy in). This is counterbalanced by the fact that true believers tend to be not very smart and, therefore, incompetent. So it feels like only 20% of the company buys into the false consciousness, just because the people who really do tend to be the inherently ineffective ones: if someone who is not pulling 7 figures per year genuinely loves his corporate job--i.e., his position of having to sacrifice more than half his life to do paperwork for rich people--he is probably not very bright and it is borderline miraculous that he functions at all.