also, let me ask a very related question: suppose you found a job at FB that is applicable to your background, but, like g+, you totally hate the concept of FB and never joined. now, the job at FB is directly relevant to your expertise and career path.
what happens, then? do they test you to see if you are 'like them'? do they outright ask for your social media id (not pw, but username)? if they sense you are not a 'joiner' will they even offer you a job, there?
this has also crossed my mind. I never joined FB and, in fact, never once saw what their webpages even look like. but I do see jobs there that would 'work' for my background. so, would it even be sensible to apply there? and if I did get a job there, would it last? would I be 'found out' sooner or later that I don't drink the koolaid and that I never joined in and played all the other reindeer games?
I doubt that I'd be successful there and I doubt that I'd even get past the first interview; but I'm curious how much you have to believe in the core 'vision' of a company like that in order to work there and keep your paycheck coming.
sometimes, I just want a paycheck (a stable long-term one) and I don't care as much about the core tech of the company. I'm not going to be a founder or partner, not a VC and not a VP so I won't make anything more than 'just salary'. I stopped caring about the core business of employers and I just want to keep getting my paycheck and keep doing my software stuff. (I used to care about what the company did, but I was young and thought you 'had to' believe in their ideas; but after decades in the field, I saw one business fail after another after another and soon, it all just became a blur.)
tl;dr: do you have to play along in order to keep your job (or get a job) at social media-based companies?