Military service can really force you out of your bubble: All my friends chose to do civil service instead or were unfit for duty. The other conscripts were very different from me and I never before or after in my life felt so alienated from the people around me.
Just one example: From the environment I grew up in, I though that it was natural that women could be leaders, until then I thought that sexism would be a subtle thing, mostly of implicit, hidden biases. I was shocked to hear how my fellow soldiers talked about the one female sergeant. They made fun of her behind her back (even though she was a hypercompetent badass, for example sneaking through the forest mock killing all the guards during a training exercise), talked about how they could never respect her, because she was a woman, fantasised together about going up to her room to have rough sex with her….
I really did not like them as persons, I did not want to be friends with any of them and I generally hated spending time with them (playing football together was still fun though). Maybe I was arrogant, too?
I don’t know, it’s kinda fun to accuse Wittgenstein of arrogance from the comfort of ones chair, surrounded by ones bubble of similar-minded people, while imagining how one would be friends with the proletariat one never meets - but I kinda believe Wittgenstein, when he called his fellow soldiers bigoted. I can feel with him, trying to do his best in a horrible, scary situation, praying to be brave, while being surrounded by people he really does not like and there are worse things than complaining a bit in your diary in a situation like this.