Most businesses don't compete on difference - most competitors are virtually indistinguishable from one another. Rather they tend to compete on brand identity and loyalty.

I think businesses assume the output of AI can be the same as with their current workflow, just with the benefit of cutting their workforce, so all upside and no downside.

I also suspect that a lot of businesses (at least the biggest ones) are looking into hosting their own LLM infrastructure rather than depending on third party services, but even if not there are plenty of "indispensible" services that businesses rely on already. Look at AWS.