Because computer science was one of the most in demand fields for many years, attracting the most ambitious and talented undergrads -- that is to say, the avera

Because computer science was one of the most in demand fields for many years, attracting the most ambitious and talented undergrads -- that is to say, the average google employee is pretty well educated likely via a liberal education institution. Those who are educated are more able to clearly understand the consequences of their actions or inactions and understand lack of solidarity for others means lack of solidarity for yourself. The purpose of liberal education is to teach people how to critically think and build a world that they themselves would like to live in, so when a liberally educated ambitious person realizes that they are contributing to building a lesser world it becomes problematic and they correctly feel a need to take responsibility for building a better future. Add in a legacy of declaring that "don't be evil" is a founding principle and you are going to find people being pretty upset about being lured in with promises of social responsibility and like-minded peers, only to find an ethically devoid pursuit of next quarters profit that can be found at nearly any company in America.