If some start up is working on some novel ML algorithms, that has some nice demos out in the public showcasing their work,
I wonder if these bigger companies would take a peek at the source code and use some ideas from the algos for their ml products.
This would prevent start-up from expanding into other areas.
Does that happen when you use AWS or Azure? Enterprise is a completely different ball game, be it Microsoft, Google or Amazon.
The amount of value they will get by peeking will be insignificant as compared to the reputation loss they will suffer from enterprise customers.