Why are people so excited about Sam and Greg joining Microsoft?
The only value Sam brought to OpenAI was connections and being able to bring funding. But that's not something Microsoft needs, so what value does Sam give them?
Putting on my lateral thinking hat, by hiring Altman and Brockman they ensure that they cannot compete against them in whatever enterprise they were thinking of doing. It gives the corporation incredible breathing room of at least a year to catch up while also being able to mine them for their knowledge. Additionally they will serve as beacons for hiring devs into their corporation.
The only value Sam brought to OpenAI was connections and being able to bring funding. But that's not something Microsoft needs, so what value does Sam give them?