The former Googler who started that spreadsheet faced retaliation from management for that spreadsheet, actually.
"Former Google employee Erica Baker revealed in a flurry of messages on Twitter Friday that she faced retaliation from management after compiling a spreadsheet of employee salaries."
That was one side of the story - presumably there is another side of the story. Since she left, there is another spreadsheet going around, and the maintainers are all still working at google AFAIK
We have people who started a spreadsheet where googlers can post their salary/total comp and they are still working at google.