I’m in your shoes only it’s my Dad... and I’d jump in front of a train to save him, even though he doesn’t know who I am and hasn’t long to live anyway...I’d do so even for your mom, a stranger. There’s no time to calculate “value,” and no need to, when you remember that our savior paid the same price to redeem each of us.
I know it’s exhausting and your mom’s illness has not just robbed her of her identity and liberty, but it has also robbed you of all your freedom just as my Dad’s loss has taken mine... but it has not robbed her or you of your purpose. Our purpose is to glorify God by selflessly serving the least among us, and for that it is necessary that some have the purpose of serving God most directly by being the least- being those whom we are to serve. Sometimes we just need to be reminded of these things since these “least among us” are by definition unable to return the favor, or in the case of those with severe dementia, unable to even express appreciation for our service. It helps to remember we are really serving God and so it matters not at all the “value” we place on a person but the value God places on a person.
I’m more worried about what it says of our emasculated society that the daughter was the one who went to the rescue when every man there should have been alert and moved first.