As I understand positivism, for it to acknowledge personal fulfillment would be a contradiction of it's basic premisses.
This debate reminds me of school when I was a teenager.
Boys will be boys, and whenever "one of the guys" made a crude joke about something on the expense of a girl or an outsider, all the other boys joined in laughing. Not because it was funny, but because they were or wanted to be "one of the guys".
I usually never had a problem with tearing a hole in that bubble, and I was good at it too. That made the primates feel foolish, since I displayed a more mature attitude and gained favor with the girls, which resulted in hostile attitudes towards me. I loved it.
But I learned that being an individual is hard. This was when I was a boy among other boys. I can only imagine how hard it must be when such conflicts arise where the stakes are much higher.