If you're looking for an incentive to make this happen in open source, how about the team behind MPT-30B just getting acquired for $1.3 billion.
There are a LOT of well-funded groups trying to make an impact in open source models right now.
If you look at Mosaic, their value, their secret sauce, is the infrastructure. The model, to say it cynically, was marketing. Now it's true it can be marketing and help push open source forward at the same time.
More of a separate point, but I also think models are going to be fairly quickly commoditized on a couple years timescale, so the infrastructure to train a model or serve a model, or the thing built on the model is the value, but right now models are still the value because they're so new and we haven't finished (in fact we're really only starting) the race to the bottom.
I would be very surprised if the closed source research teams can maintain their advantage over the next 12-24 months - especially given the number of enormous GPU clusters that are becoming available now.