Yes, when testing at ad companies, at least devs typically have to remember to turn off (multiple?) ad-blockers and enable flash. Some don't even tell their families they're in ads; rather say, "I'm in IT" hoping it's a boring enough answer that no one asks deeper. They think in abstract numbers like requests/sec, so they can go weeks without thinking about the actual results. (http://strikemag.org/bullshit-jobs/)

(Though I think it's rare to be explicitly aware of ads as corporate propaganda. Some are.)