PandasRock, having money does actually "magic up services", not least respite care, so that the carer can get a decent night's sleep from time to time, or spend time with their other family members, or hang onto their job.
Money pays for proper adaptations to the home, so that an already-ill person doesn't fall out of bed and seriously injure themselves, and when I'm at work and have to instruct the ambulance to break down the door over the phone, money pays to have the door replaced afterwards, so you don't have to live with an insecure home until you can save up.
Money pays for an adapted loo, and trained help to get the person there, so that the person you are caring for doesn't end up pissing in a pan in the living room, crying with pain because you have neither the training nor the physical strength to hold them up properly.
Money pays for transport to and from the hospital in the final months, so you don't run up an enormous overdraft just trying to manage all your caring responsibilities when they are three bus rides' apart, and the person you are caring for gets proper visits and proper supervision of their medical care.
Money pays for a leave of absence from work, so that you don't end up in the loos at work throwing up (due to lack of sleep plus grief and stress) twenty minutes before a meeting, and trying to splash water on your face so you don't look entirely deranged, all the time knowing you aren't on top of your brief due to lack of work and stress and grief.
Etc, etc.
None of this money keeps them alive in the end, of course, but it makes the journey through illness a hell of a lot different.