This is just a personal observation. I grew up in a religious middle-class environment with foreign people basically. My friends/acquaintances were from poor countries or their parents were from poor countries. Their parents did well in America and want their kids to do better. They were all very grade focused and are now in professional schooling or have a job lined up at big snobby corporations after internships.

They are very focused on making money, but along the way, they naturally came across men who are similar to them and make more money than them and have more status than them. I think it's just natural. I don't know how a career-focused woman could end up alone unless she was ugly. These girls are very feminine, slightly conservative and not trashy, they just have careers and care about having their own money. You just have a higher chance of meeting Dr. Brad or Businessman Chad if you work by or with him.