Your examples are using simple tech to replace a monotonous job and I'd agree that they are improvements.
Using an LLM/AI to provide customer service is using ridiculously overblown tech to replace human interaction which pretty much nobody wants (i.e. nobody wants to phone up customer support and get an LLM).
Imagine if traffic signals got replaced with AI systems - it'd be hugely expensive and likely cause completely un-traceable issues from time to time as it hallucinates traffic.
Paying people for work that people are good at is not crazy.
And put a guy on every gas pump in the country so they could pump your gas.
And bring back the telephone network operators that connect you to whoever you want to talk to.
Nah, paying people for work is crazy.