Yes, there are good cases where "realistically sounding bullshit" is useful! I remember in the early days, before everyone grew kind of tired (well, at least me) of GPT, people used "hehe write me PC manual in style of slam poetry" or whatever, and that is fun.
However, people use it to get facts!
Just a few days ago, I have read somewhere that hospitals are planning to use LLMs to replace nurses. That is horrifying. Absolutely horrifying.