Earlier quoted context omitted.
That's too charitable. It's a rhetorical tool that Orwell uses to invoke a sort of comradery with the reader because it lends itself to the largely anti-establishment points he tried to get across. It's the old Etonian going "I'm one of you guys" which has a long tradition in British political rhetoric.
So? You say it like it’s a bad thing to use rhetoric. But even pg has his own sharp set of rhetorical tools.
In reality much of Orwell's output was the result of his personal feud with Stalinism, deeply conventional and elitist, and not that deep, and it's not surprising that he is today probably the most mindlessly-quoted writer around.