Because they are extremely useful.
They speed up bottlenecks in many areas. It's like having an assistant with a broad, although superficial, knowledge. Which is fine. I can manage myself and oversee senior employees, judging chatgpt output is pretty trivial.
Future are agents. That's what is really missing at this point. Something that can take over more complex tasks with less supervision.
The challenge for AGI is social, that's the biggest challenge. AI will take over a lot of work, but we need better wealth distribution