The other favorite arguments are, "if we don't do <unethical> thing, someone else will, therefore it's ethical". I call it the "selling crack to teenagers" argument but it was the go-to by Google employees defending the autoaim killbot project Maven.

There was also an idea that, Google employees are the "good guys" compared to "evil Amazon", therefore when Google does something, it's de facto good, and it's better for Google to do the unethical thing since they will do it less unethically than Amazon.

Google employees care a lot about their "TC" and "GSUs" - that's it. What bugs me is that at least Goldman employees and their ilk kind of have that tacit acknowledgement that they are in it for the lucre. A lot of Googlers really act like they are in it for the greater good even when the company picks money over ethics at literally every junction.