A former Google employee, Andrew Norman Wilson posted a very interesting video about a group of Google employees who were portrayed as a "lower class" of Googlers.
"These Googlers were primarily responsible for the Google Book project where they manually scanned books all day. Andrew Wilson documented how these Googlers worked, starting their day at 4 am and leaving at 2:15 pm every day. He also said they were hired by not only Google but also by Transvideo Studios. The building they worked at was near the other Google buildings in Mountain View, California and was building number 3.14159~.
Andrew felt they were lower class Googlers because they wore a yellow badge, weren't allowed access to the Google shuttles, free Google food, the Google bikes and tons of other Google perks."
You can watch the video Andrew created while at Google of this group of people below:
[Source: Andrew's blog]