And that's unrelated to native intelligence?
No. And yes. Intelligent people can raise relative heathens. And vice versa. My grandparents were all immigrants, though none Jewish. On my mother's side especially, these things were highly valued. She was never officially educated beyond high school, yet she was well read, could converse in 2 or 3 languages, understood politics (would have loved this forum), among her other talents. My grandmother made it through the 6th grade, not bad considering that many of her female classmates dropped out earlier to work or help the family and was similarly talented. We all do pretty well with grades and IQ's. So which was it, environment or genes? I say both. These certain things are valued and help boost intelligence even where genes are proven to play a role.