The problem with not defining boundaries and instead relying on some fuzzy notion of understanding the subtext is that it leads to confusion. The James Damore fiasco demonstrates this. They guy actually thought he could write an opinion on a highly controversial and inflammatory topic without repercussions. Why did he think that? The vast majority of HR departments would explicitly discourage it and the company culture (especially at a multinational) would make it clear this isn't a topic for the corporate intranet. But he was confused enough that he thought this was ok because he probably though Google is different and is OK with employees debating political and social positions on company boards. That's what I mean by 'Google encouraged it'.
Isn't that what a successful socialisation process should equip you with?
"Successful socialization" is pretty nebulous. I think it's a phrase to imply that some people who are objectively functioning in society "don't count" as socialized.
Anybody can be successful in whatever respect until one day they aren't.
You can really, really not like any given person, but if you question whether Damore lacked/lacks basic socialization, then what do you make of Martin Shkreli, or Donald Trump? Are you ok until you get sentenced to prison? Or can you be a failure until you become POTUS? If you've failed at basic socialization yet held a six figure job at Google, what would you be if instead you were a supermarket cashier, but with the same beliefs and personality?