I asked because I wondered if his illness is making him feel worthless and he's ascribing motives to these girls that they don't actually have. If they've come out and said anything along those lines though then he's really better off without them.
As long as he doesn't let this define him, he'll come into his own as he gets older.
We live in a world where wealth matters and people are told to aspire to it. A world in which someone's salary is often seen as more important than their compassion and integrity. Many young people tend to believe this, especially as our celebrity-obsessed culture and even our politicians push this ideal harder and harder every single day.
However, once you've been around a little bit longer, you start to see the world a bit differently, especially when you, or someone you know, falls foul of something beyond their control and needs a little compassion and kindness. Some of these women will see your DS very differently in just a few short years.
I know that's scant consolation for your DS right now, but he's very young and health permitting now is the time for him to have some fun.
I wish him all the best for a smooth operation and a successful recovery. 