Conversational interfaces definitely increase the accessibility of knowledge.
And critically, SaaS AI platforms increase the availability of AI. E.g. the person who wouldn't be able to set up and run a local model, but can click a button on a website.
It seems reasonable to preclude SaaS platforms from making it trivial to produce the worse societal harms. E.g. prevent stable diffusion services from returning celebrities or politicians, or LLMs from producing political content.
Sure, it's still possible. But a knee high barrier at least keeps out those who aren't smart enough to step over it.