Oh no :(

I don't think this is a correct description of the open source Broadcom Wifi driver ecosystem.
There are many drivers, but they hardly have any functional overlap with each other. There are many generations of devices with literally hundreds of different possible internal combinations. Each driver supports a certain subset of these combinations.

But let's talk about Larry instead.

He was a major contributor to the whole Broadcom driver ecosystem. Not only by writing code, but also by mentoring people.
There are only a handful of people in the Open Source world who understand the hardware to some deeper detail level.
Larry was one of them.
He mentored other people to get the Broadcom Open Source code into kernel.

And I think it was a huge success. And that was only a small part of Larry's success story.