They probably get fired if they don't drink the corporate kool-aid. Lot of big corporations like that.
I used to work for a big corporation. Not long after I started I had to see the HR lady for some bullshit (I wasn't in trouble) and the secretary was in there too. We were all chatting a bit and they made jokes about me liking the clash etc. I told them I liked Justin beibers music because he's hot.
The silence and awkwardness was deafening. They weren't sure what to do. I proper tricked them and they had to act all professional. I told them I was fucking with them tho. Funny gals, but when they went into pc mode you could see it was an act.