Yes, the system rewards people with self-destructive behaviours. They're visible and can put others at risk along with themselves. They don't tend to need to ask for help, because it's obvious and help just gets handed out.

When you're high-functioning and able to appear stable, you get missed. No one notices signs because everyone is only looking for the extreme cases which reinforce stereotypes. And then, with the high-functioning, the "yes I'm high-functioning but I still have a pretty low-quality of life because I'm struggling to just maintain the basics" gets missed or dismissed and the positive-thinking-brigade comes out with the "Oh, you just need to start looking on the bright side of things" being given as "help".