Some PP say that wealth makes no difference when you are hit with illness or tragedy. Up to a point, yes, no wealth can make up for a sick child, or serious illness, however it's not that simple.
Objectively we'd be classed as rich in the UK, high income, high assets, though we're quiet and scruffy and drive a fairly old car, so don't look it. We're not mega-rich, super yacht, private jet rich, but still pretty bloody lucky. We and DC know we're lucky, probably helps that we do volunteer work that keeps us in touch with how most of the world live.
I'm also disabled, and DS was born with a serious health problem. Money doesn't make up for that, or protect us from having it. But... it DOES make a difference. I can't imagine dealing with all that whilst having no/limited financial resources to fall back on. Our wealth allows me to work PT (I could stop if I had to), private physio, therapy, private pilates, taxis when I can't drive, a cleaner to do the housework, nanny to help me do bath time etc when DH working away, ability to afford a good mattress, lots of hot baths, more costly short-cuts in the shopping like chopped frozen onions etc...
Meanwhile, no money or private health insurance would help DS directly, but again wealth just removed so many other worries, allowing us to concentrate on looking after him, e.g. Buying deli ready meals or get takeout, nanny to help with DD back home, home help that freed our time up, the ability to afford to take unpaid leave to be with him...