I think a lot of people care about the downstream effects of memory prices, but I agree with you that they may not realize that they happen because of memory prices.
That might be true at micro level, but at the macro level more memory just means developers get more lazy with their optimizations, causing apps to get more bloated, eating up any gains in extra memory. There's no reason why slack needs 1+GB to run, yet people are perfectly happy to put up with it.
They don’t care about RAM prices, but they do care about the price of things that have RAM in them (or even NAND), and all of them are increasing way faster than inflation.