Well, Fake, it sounds like you're unaware of a number of serious initiatives designed to make the lives of Alzheimer's patients and caregivers (usually spouses or children of the victim) easier, not harder. "Gadgets" as you term them, have already proved quite valuable in allowing Alzheimer patients and caregivers to live better lives. As you're probably aware, there are significant differences between early and late stages of dementia.
In the early stages of the disease, forgetfulness is the enemy. Many Alzheimers patient get institutionalized after an a cooking accident or some other serious event in the home linked to forgetfulness. There are devices to automatically shut off stoves before they can create a fire, anti-scald devices to prevent them from burning themselves with overly-hot water. There are GPS bracelets that can locate a strayed dementia patient who has strayed. They often leave their houses in very cold weather and die of expo sure before they are located. Before he died, I was working with HomeVision to create checklists for my father - things he needed to do each day, things he needed to do before leaving the house, etc. I'll agree that as dementia worsens, more care is needed, but in the early stages "gadgets" can be awfully helpful.