I don't think this is a reasonable take at all. Most work on maths has no real benefit other than to further human understanding of maths - it's more like an art. Nothing is gained from OpenAI solving all these problems but taking jobs from mathematicians. Other than advertising for OpenAI at least. It could not be more different from having AI work on disease research etc.
Most math isn't just proving novel famous results. Just like most of software engineering isn't writing code.
> Most work on maths has no real benefit other than to further human understanding of maths - it's more like an art.
It's been a while since I was reminded of this xkcd: https://xkcd.com/435/