Why has Wolfram Alpha, “Math Coprocessor of AI” not been acquired yet?

I asked OpenAI for a calculation the other day, and after a very sophisticated explanation of how to calculate something, it gave me a completely incorrect answer.

Seems to me that the future of AI depends on being able to do solid math.

Thus Wolfram Alpha becomes a perfect acquisition target to become the math brain that language oriented AI is missing. In the AI gold rush why is Wolfram Alpha left on the shelf?

Because Stephen Wolfram is a billionaire who knows what he's sitting on