I worked on the Ask Toolbar and it definitely caused me to question my ethics. I felt like shit about it because I wasn't creating something I was proud of, something that other people I knew and cared about would think well of. I quit that job and moved on to something better.

I would not include such bad behavior from some bad actors as part of the "human condition" but outliers on the fringe because I believe most people want to be good and do good things, but apparently not these assholes.