Alternatively, maybe they do make a significant difference in those people's lives. I mean, seriously--who do you think you are to be the arbiter of that for them?
It does in my case. My entire routine, both morning and night, is set to the Alexa. It's convenient (it reminds me on both my phone and on the device). When I want music, I ask for it. When I'm out of dishwasher pods, I order them. It knows which ones too, because it knows which ones I ordered last time.
So yes, it makes a significant difference in my life, as someone with ADD that struggles with these every day tasks. Maybe the delusional one is the person that thinks their particular perspective is the only one.