I think he might mean blue collar culture. If your parents are blue collar workers and you grow up hearing about how bad and arrogant rich people are and professors living in ivory towers who don't know anything about the real world, you're probably going to have a harder time embracing that environment than someone who's been exposed to professionals as role models since childhood.

That's part of the cycle of poverty. Poor people push themselves away from opportunities so they can stay in their preferred culture which they've convinced themselves is better.